WO1999031538A1 - Pieces optiques et procede et dispositif de polissage de leur surface d'extremite - Google Patents
Pieces optiques et procede et dispositif de polissage de leur surface d'extremite Download PDFInfo
- Publication number
- WO1999031538A1 WO1999031538A1 PCT/JP1998/005650 JP9805650W WO9931538A1 WO 1999031538 A1 WO1999031538 A1 WO 1999031538A1 JP 9805650 W JP9805650 W JP 9805650W WO 9931538 A1 WO9931538 A1 WO 9931538A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polishing
- face
- optical
- optical component
- connection end
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B19/226—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground of the ends of optical fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/3822—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with beveled fibre ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3863—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using polishing techniques
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
Definitions
- the present invention relates to a polishing method and a polishing method for polishing an optical component end face in which an optical path such as an optical fiber is protruded from the connecting end face of the optical component by polishing the optical component used for optical communication and the like and the connection end face thereof. It concerns the equipment. Background art
- FIG. 16 shows an example of a typical multi-core optical connector as an optical component.
- the optical connector 1 has a ferrule 2 as a housing, and is inserted into an optical fiber through hole 7 formed inside the ferrule 2 at the distal end side of the optical fiber ribbon 12.
- the optical fiber 4 from which the coating has been removed is passed through with its end face exposed to the connection end face 5 of the ferrule 2.
- the connection end face side of the optical fiber 4 is fixed to the ferrule 2 with an adhesive or the like in a state of protruding 1 / xm from the connection end face 5 of the ferrule 2, for example, and pins are fitted on both sides of the fixing area of the optical fiber 4.
- the hole 9 is formed and the optical connector 1 is assembled.
- the optical fiber 4 functions as an optical path.
- FIG. 17 shows an example of such a connection structure of the multi-core optical connector 1.
- the connection end face 5 has a surface orthogonal to the optical axis of the optical fiber 4. And a slope inclined by 8 degrees with respect to a plane perpendicular to the optical axis.
- the optical connector 1a is shown in a side view
- the optical connector 1b is shown in a sectional view.
- the optical connector la and the optical connector lb are arranged so that the connection end faces 5 face each other, and the common connection pin 3 is used for the pin fitting hole 9 of the optical connector 1 a and the pin fitting hole 9 of the optical connector 1 b.
- the optical connector la and the optical connector lb are aligned.
- the optical fibers 4 of the optical connectors 1a and 1b are aligned, and the connection end faces of the optical fibers 4 are physically directly optically connected without a connection matching agent or the like.
- the direct physical connection between the optical fibers 4 in this manner is called PC (Physica1Contact) connection of the optical fibers 4.
- connection end face 5 of the optical connector 1 is pressed against the lapping liquid 40 to polish the connection end face.
- the ferrule 2 which is softer than the optical fiber 4 is polished more with the lapping liquid 40 by utilizing the difference in the material of the ferrule 2 of the optical connector 1 and the material of the optical fiber 4, thereby obtaining the optical fiber as described above.
- the connection end face of the bus 4 protruded from the connection end face 5 of the fuel rule 2 by about 1 / im.
- the material of the ferrule 2 of the optical connector 1 is made of, for example, a mixed material of about 80% of a glass ferrer and about 20% of a resin. Since the difference in hardness is not so large, it takes a very long time to project the connection end face of the optical fiber 4 only 1 ⁇ m beyond the connection end face 5 of the ferrule 2 as described above, and polishing of the optical connector 1 takes place. There was a problem that it took a long time.
- connection end face of the optical fiber 4 can be changed.
- the protrusion of the optical fiber 4 made it difficult to reliably assure a high-quality PC connection because the optical fiber 4 could protrude only a small length of 1 ⁇ m from the connection end face 5 of the ferrule 2.
- the protrusion of the optical fiber 4 is small, even if the optical connector la and the optical connector lb are slightly displaced, a gap is generated between the connection end faces of the optical fibers 4 of the optical connectors la and lb.
- the optical connection loss between the optical fibers 4 is increased.
- the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide an optical path such as an optical fiber having a desired length from a connection end face of an optical component such as an optical connector in a short time.
- An object of the present invention is to provide an optical component that enables high-quality PC connection between optical components, and a polishing method and a polishing apparatus for an end face of the optical component. Disclosure of the invention
- the present invention has the following configuration as means for solving the problems. That is, the first configuration of the invention of the method for polishing an end face of an optical component is a polishing auxiliary member having a concave portion formed at a position corresponding to a region including an end face of an optical path exposed at a connection end face of the optical component.
- the polishing end member and the optical component are opposed to each other with a polishing medium interposed therebetween, and at least one of the polishing auxiliary member and the optical component is relatively moved in a direction in which the distance between the opposing end surfaces changes widely.
- the region including the connection end face of the optical path is made to protrude more than the connection end face of the optical component around it.
- a soft member softer than the surrounding area is provided at a position corresponding to a region including the end face of the optical path exposed at the connection end face of the optical component.
- a polishing auxiliary member is opposed to a connection end face of the optical component via a polishing medium, and at least the polishing auxiliary member and the optical component are disposed.
- the other end is relatively moved in a direction in which the distance between the opposing end faces changes widely, and the connection end face of the optical component is polished, and the region including the connection end face of the optical path is protruded from the connection end face of the surrounding optical component. It is characterized by:
- the concave portion of the polishing auxiliary member has a soft member that is softer than the material of the polishing auxiliary member forming portion around the concave portion. Is provided.
- the polishing auxiliary member is a ferrule having an optical fiber through-hole formed therein. It is characterized in that the holes are recessed.
- a fifth configuration of the invention of a method for polishing an end face of an optical component in addition to the fourth configuration, the optical component is fixed through an optical fiber through a ferrule and pins are provided on both sides of the optical fiber fixing region.
- An optical connector having a fitting hole formed therein; a pin fitting hole formed at both sides of the concave portion of the polishing auxiliary member at a position corresponding to the pin fitting hole of the optical connector; A fitting pin is inserted into the fitting hole and the pin fitting hole of the optical connector to polish the connection end face of the optical component.
- connection part of the optical component is exposed on the basis of the outer shape of the optical component and the outer shape of the polishing auxiliary member.
- the polishing of the connection end face of the optical component is performed by aligning the concave portion of the polishing auxiliary member with the area including the end face of the optical path.
- ultrasonic vibration or vibration by a vibrator to at least one of the polishing auxiliary member and the optical component, the number of the polishing auxiliary member and the optical component is reduced.
- an eighth aspect of the invention of a method for polishing an end face of an optical component is that, in addition to the fourth aspect, at least one of the polishing auxiliary member and the optical component is subjected to ultrasonic vibration or vibration by a vibrator. It is characterized in that at least one of the polishing auxiliary member and the optical component is relatively moved in a direction in which the distance between the opposing end faces changes in a wide and narrow vibration.
- a first configuration of the invention of an apparatus for polishing an end face of an optical component includes a region including an optical component holding portion, and an optical path end surface exposed at a connection end surface of the optical component held by the optical component holding portion.
- a polishing auxiliary member arranging portion for arranging a polishing auxiliary member having a concave portion at a position corresponding to a polishing end member and a connection end face of the optical component via a polishing medium, and at least one of the polishing auxiliary member and the optical component
- a second configuration of the invention of a polishing apparatus for an end face of an optical component is such that, in addition to the above-described first configuration, the holding section of the optical component is configured to hold a plurality of optical components together, and the moving mechanism for polishing is At least one of the polishing auxiliary member and the optical component group faces each other with a polishing medium interposed between the connection end face of the optical component group held by the holding portion of the optical component and the polishing auxiliary member.
- a third configuration of the invention of a polishing device for an end face of an optical component is that, in addition to the first or second configuration, the polishing moving mechanism is an ultrasonic vibration generating device or a vibration generating device using a vibrator.
- a first configuration of the invention of the optical component is an optical component in which a plurality of optical path end faces are exposed on a connection end face of the optical component, and the optical component is exposed on a connection end face of the optical component.
- the region including the light path end surface is polished by the polishing method of any one of the above-described structures, and the region including the light path end surface is protruded from the surrounding connection end surface.
- the feature is that the unevenness of the protrusion amount between the included regions is less than 0.5 ⁇ m.
- a second configuration of the invention of the optical component is an optical component in which a plurality of optical path end faces are exposed on a connection end face of the optical component, and the region including the optical path end face exposed on the connection end face of the optical component is as described above.
- the area including the light path end face polished by the polishing method of any one of the structures protrudes beyond the surrounding connection end face, and the protruding amount between the areas including the light path end face of each light path is 5 ⁇ m or less. It is characterized by the following.
- polishing auxiliary member which formed the recessed part in the position corresponding to the area
- the connection end face of the optical component is polished by disposing the polishing auxiliary member and at least one of the optical component relative to the connection end face in a direction in which the distance between the opposing end faces changes widely and narrowly. Therefore, by the relative movement, only the region other than the concave portion forming portion of the polishing auxiliary member, that is, the region other than the region including the optical path end surface of the optical component is polished to include the connection end surface of the optical component. Since the area can be polished or hardly polished, the area including the connection end face of the optical path of the optical component protrudes from the connection end face of the surrounding optical component in a very short time, easily and accurately. Let it be Can be.
- the region including the optical path end face such as the optical fiber can be set to a desired protrusion amount within a range of approximately 1 to 5 ⁇ m, for example. Therefore, for example, in an optical connector having an optical fiber, it is necessary to connect the optical connectors by projecting the connection end face of the optical fiber beyond the ferrule around the optical fiber. Thus, a good Pc connection between the optical fibers can be reliably obtained.
- a soft member that is softer than the material for forming the polishing auxiliary member around the concave portion is formed in the concave portion (recess forming position) of the polishing auxiliary member.
- an optical component end surface polishing method of the present invention in which a soft member softer than the periphery is provided at a position corresponding to a region including the optical path end surface exposed at the connection end surface of the optical component.
- the processing energy applied to the optical path end face of the optical component or a region including the optical path end face is connected to the connection end face of the optical component therearound. Since it can be made smaller than the processing energy to be added, the same effect as described above can be obtained.
- the polishing auxiliary member is a ferrule having an optical fiber insertion hole formed therein.
- the connection end surface of the optical connector having the through-hole fixed can be easily and accurately polished by using the polishing auxiliary member.
- the optical component is an optical connector formed by fixing an optical fiber through a ferrule and forming a connection pin fitting hole on both sides of the optical fiber fixing area, and the both sides of the optical fiber insertion hole of the polishing auxiliary member.
- a pin fitting hole is formed at a position corresponding to the pin fitting hole of the optical connector, and a fitting pin is inserted into the pin fitting hole of the polishing auxiliary member and the pin fitting hole of the optical connector.
- the positioning between the optical connector and the polishing auxiliary member, which is performed by inserting the fitting pin, is very easy, and Since it can be performed accurately, the region including the optical fiber end face can be very easily and accurately protruded from the connection end face of the ferrule by short-time polishing.
- the concave portion of the polishing auxiliary member is aligned with the end of the optical path exposed at the connection end surface of the optical component with reference to the external shape of the optical component and the external shape of the polishing auxiliary member, and the connection end surface of the optical component is polished.
- polishing of the end face of the optical component as described above can be performed very easily and accurately.
- the polishing auxiliary member can be polished.
- the polishing method of the end face of the optical component of the present invention at least one of the optical component and the optical component is relatively moved in the direction in which the end face spacing changes in a wide and narrow vibration. At least one of them can be easily controlled and moved, and the polishing of the end face of the optical component can be performed very easily and accurately.
- the ultrasonic wave and the vibration energy of the vibrator can be easily variably adjusted.
- the holding part of the optical component is configured to hold a plurality of optical components together
- the polishing moving mechanism is configured to polish between the connection end face of the optical component group held by the holding part of the optical component and the polishing auxiliary member.
- the polishing auxiliary member and the optical component group With the medium interposed, at least one of the polishing auxiliary member and the optical component group is relatively moved in a direction in which the distance between the end faces changes widely, so that an area including the connection end face of the optical path of the optical component group is formed.
- the optical component end surface polishing apparatus of the present invention which is configured to protrude from the connection end surface of the surrounding housing and polish the same, the end surface polishing of the optical component group can be performed collectively. An excellent apparatus that can more efficiently polish the end face of the optical component as described above can be provided.
- the polishing moving mechanism is an ultrasonic vibration generator or a vibration generator using a vibrator
- Ultrasonic vibration is generated by a vibration generator of a sound wave or a vibrator
- at least one of the polishing auxiliary member and the optical component is relatively moved in a direction in which the end face interval is changed in a wide-and-narrow vibration direction.
- the apparatus can very easily and accurately grind the end face.
- region including the light path end face means a region having only the light path end face (a region that is congruent with the light path end face), and a case in which the area extends outside the light path end face.
- the term is used to mean both the area including the light path end face (the area surrounding the light path end face and larger than the light path end face).
- FIG. 1 is a front view of a main part configuration showing an embodiment of an optical component end surface polishing apparatus according to the present invention
- FIG. 2 is a view showing a main part configuration of the optical component polishing apparatus of the above embodiment
- FIG. 3 is an enlarged view of an area where an optical fiber is provided in the optical connector 1 and an area where an optical fiber is provided in the ferrule 3 in the polishing apparatus of the embodiment.
- FIG. 4 is an overall configuration diagram of the optical component polishing apparatus according to the embodiment
- FIG. 5 is an optical connector provided in the optical component polishing apparatus according to the embodiment.
- 1 is a front view (a) as viewed from the connection end face side and a side view (b) of the optical connector 1.
- FIG. 6 shows the optical component polishing apparatus of the above embodiment.
- FIG. 3 is a diagram showing the ferrule 3 to be arranged in a side view (a) and a front view (b) viewed from the end face side of the ferrule 3;
- FIG. 7 is an explanatory view showing the movement of the polishing medium that occurs when the optical component polishing apparatus of the embodiment is operated.
- FIG. 8 is an optical component polishing apparatus of the embodiment.
- FIGS. 9A and 9B are explanatory views showing a cross-sectional view (a) and a side view (b) of an optical connector whose connection end face is polished using FIG. 9.
- FIG. Another FIG. 10 is an explanatory view showing another example of forming a concave portion of a ferrule used in the method for polishing an end face of an optical component according to the present invention.
- FIG. 11 is an explanatory view showing another example of the configuration of an optical connector used in the method for polishing an end face of an optical component according to the present invention.
- FIG. 12 is a method for polishing the end face of an optical component according to the present invention
- FIG. 13 is an explanatory view showing still another example of the formation of the concave portion of the ferrule used in FIG. 13.
- FIG. 13 is an optical connector obtained after polishing the optical connector of FIG. 11 using the ferrule of FIG.
- FIG. 14 is an explanatory view of another embodiment of the arrangement of the optical connector 1 and the ferrule 3
- FIG. 15 is an explanatory view of the optical connector 1.
- FIG. 16 is an explanatory view of an embodiment showing still another configuration of the arrangement portion of the ferrule 3 and FIG. 16.
- FIG. 16 is an explanatory view of an embodiment showing still another configuration of the arrangement portion of the ferrule 3 and FIG. 16.
- FIG. 16 is a perspective view showing an example of the multi-core optical connector
- FIG. 17 is an explanatory diagram showing a cross-sectional view of A.
- FIG. 17 is an explanatory diagram showing an example of a connection structure of the multi-core optical connector.
- FIG. 18 is an explanatory view showing an example of a conventional method for polishing an end face of an optical connector.
- FIGS. 1 and 2 show a main part of an embodiment of a polishing apparatus to which a method for polishing an end face of an optical component according to the present invention is applied. It is shown with a ferrule 3 which is a polishing auxiliary member used for polishing the connector 1 attached.
- FIG. 1 shows a front view of the polishing apparatus, and FIG. 2 shows a side view thereof.
- the optical connector 1 and the ferrule 3 are: It is shown by a cross-sectional view.
- FIG. 4 schematically shows an overall view of the polishing apparatus.
- the components shown in FIGS. 1 and 2 are provided in the third polishing step 30 of the apparatus shown in FIG.
- this polishing apparatus is provided with a first polishing step portion 28, a second polishing step portion 29, and a third polishing step portion 30 on a pedestal 25 having a control function.
- the first and second polishing process sections 28 and 29 are provided with grinding wheel rotating sections 21 and 22 and connector holding sections 17 and 18 and moving mechanisms 23 and 24, respectively.
- the third polishing step portion 30 is provided with a supply unit 27 of a polishing medium for polishing the end face of the optical connector 1.
- the grindstone (not shown) of the grindstone rotating part 21 provided in the second polishing process part 29 is more tight than the grindstone (not shown) of the grindstone rotating part 22 of the first polishing process part 28.
- each moving mechanism 23, 24 moves each connector holding part 17, 18 with respect to each grinding wheel rotating part 21, 22, right and left and back and forth in the figure (paper space). (Perpendicular to the direction).
- the first polishing step portion 28 and the second polishing step portion 29 are configured as described above, so that the connection end face 5 of the optical connector 1 is roughened at the first polishing step portion 28. Polishing is performed, and thereafter, in the second polishing step portion 29, the connection end surface 5 is configured to be finely polished to a predetermined shape such that the angle of the slope is 8 degrees, for example. Then, after that, the optical connector 1 is moved to the third polishing step part 30, and the third polishing step part 30 is a step of finishing the optical fiber 4 by projecting the optical fiber 4 from the connection end face 5 of the optical connector 1. It is a part.
- the optical component end surface polishing apparatus of the present embodiment includes a connector holding portion 16 as an optical component holding portion, and the connector holding portion 16 holds the connector. It has a ferrule disposing part 15 for disposing the ferrule 3 between the connection end face 5 of the optical connector 1 and the polishing medium 20 via the polishing medium 20. Have been.
- a spring or the like (not shown) is provided in the ferrule disposition portion 15. When the ferrule 3 is disposed in the ferrule disposition portion 15, the ferrule 3 is pushed toward the optical connector 1 by the spring or the like. It can be attached.
- the optical connector 1 used in this embodiment is formed to have an optical fiber 4 made of quartz glass and a ferrule 2 made of a molded body made of a glass ferrer and an epoxy resin material, as in the conventional example.
- the ferrule 3 has an optical fiber insertion hole 8 as a recess formed at a position corresponding to the optical fiber 4 exposed on the connection end face 5 of the optical connector 1.
- FIG. 1 shows two optical fiber insertion holes 7 and 8 of ferrules 2 and 3 and two optical fibers 4 of optical connector 1, respectively. In practice, a larger number is often used. For example, in the examples shown in FIGS. 3, 5, and 6, the optical fiber through holes 7, 8 and the optical fiber 4 are respectively Four are provided.
- Each of the optical fiber through holes 7 and 8 has a circular cross section, and its inner diameter (hole diameter) R is about 126 ⁇ m, which is smaller than the outer diameter of the optical fiber 4 (125 ⁇ m). Is also slightly larger. Also, as shown in FIGS. 5 and 6, the connection end face 5 of the ferrule 2 and the end face 6 of the ferrule 3 correspond to a plane perpendicular to the optical axis of the optical fiber 4 and a plane perpendicular to the optical axis. It is formed by a slope inclined at 8 degrees.
- Pin fitting holes 9 are formed on both sides of the fixing area of the optical fiber 4 in the optical connector 1, and the pin fitting holes 9 of the optical connector 1 are formed on both sides of the optical fiber through hole 8 of the ferrule 3.
- the pin fitting hole 10 of the ferrule 3 and the pin fitting hole 9 of the optical connector 1 are provided with a step as a fitting pin.
- Guide bin 1 1 is inserted ing.
- the small-diameter pin 13 side of the stepped guide bin 11 is inserted into the pin fitting hole 9 of the optical connector 1.
- An ultrasonic generator (ultrasonic vibration generator) 14 is provided in the ferrule placement section 15 via a shaft 26, and the ultrasonic generator 14 is arranged as shown in FIG. It is provided in the pedestal 25.
- the ultrasonic wave generating device 14 In the state where the ferrule 3 is pressed against the optical connector 1 as described above, the ultrasonic wave generating device 14 relatively and narrowly vibrates the ferrule 3 at the end face distance between the ferrule 3 and the ferrule 2.
- the connecting end face of the optical fiber 4 is moved from the connecting end face 5 of the ferrule 2 by moving the ferrule 3 in the direction of the optical axis of the optical fiber 4 with relative vibration. Also functions as a polishing moving mechanism for polishing by protruding.
- the present embodiment is configured as described above. Next, a method of polishing the connection end face 5 side of the optical connector using the polishing apparatus will be described.
- the optical connector 1 is held in the connector holding part 18 of the first polishing process part 28 shown in FIG. 4, and the connection end face 5 is directed to the grindstone rotating part 22 side. 5 is roughly polished.
- the optical connector 1 is moved to the second polishing step portion 29, is held by the connector holding portion 17, and the connection end face 5 is polished toward the grindstone rotating portion 21 so that the optical connector 1 is polished. Finish and polish the end face of the optical fiber 4 and the connection end face 5 of the ferrule 2. After that, the optical connector 1 is moved to the third polishing step portion 30.
- the optical connector 1 is arranged on the upper side of the ferrule 3, and the stepped guide pin 11 is inserted into the pin fitting hole 9 of the optical connector 1, and An optical connector 1 is held by a connector holding portion 16 with a polishing member 20 (for example, diamond abrasive having a particle diameter of 3 ⁇ m) interposed between a connection end surface 5 of the connector 1 and an end surface 6 of the ferrule 3. .
- the ultrasonic generator 14 is driven to generate ultrasonic waves of 20 KHz for about 20 seconds.
- the ferrule 3 is vibrated in the direction of the optical axis Z of the optical fiber 4 to move relative thereto, and the connection end face 5 of the optical connector 1 is polished.
- the vibration of the ferrule 3 is transmitted to the polishing medium 20 and the polishing medium 2 ° moves in the optical axis direction of the optical fiber 4, and the polishing of the connection end face 5 of the optical connector 1 is performed.
- the ferrule 3 has an optical fiber insertion hole 8 formed at a position corresponding to the optical fiber 4 of the optical connector 1 (a position corresponding to a region including the end face of the optical fiber 4).
- the polishing medium 20 hardly collides with the connection end face side of the optical fiber 4, and falls into the optical fiber insertion hole 8 of the ferrule 3.
- the connection end face of the optical fiber 4 of the optical connector 1 is hardly polished, and only the connection end face 5 of the ferrule 2 around the concave portion (the optical fiber through hole 8) is polished.
- connection end face side of the optical fiber 4 is hardly polished, and only the connection end face 5 of the ferrule 2 around the optical fiber 4 is polished. Can be polished. For this reason, it is possible to polish the connection end face of the optical fiber 4 from the connection end face (connection end face of the optical component) 5 of the ferrule 2 in a very short time, for example, an ultrasonic generator. By adjusting the drive time and the like in 14, a desired optical fiber protrusion amount can be easily and reliably obtained.
- connection end face of the optical fiber 4 was It has been confirmed that polishing by protruding about 3 m from the connection end face 5 can be easily performed in a very short time. Then, using the optical connector 1 in which the connection end face of the optical fiber 4 protrudes by about 3 / m from the connection end face 5 of the ferrule 2, the optical connection between the optical connectors 1 is performed as shown in FIG. I went there and it was very good Optical fiber 4 could be connected to the PC.
- the ferrule 3 having the same shape as the ferrule 2 of the optical connector 1 is used as a polishing auxiliary member of the optical connector 1, and the pin fitting hole 9 of the ferrule 2 of the optical connector 1 and the ferrule are used.
- the stepped guide bin 11 is inserted into the pin fitting hole 10 of No. 3 to position the optical connector 1 and the ferrule 3. Therefore, this positioning can be performed very easily and accurately, and the end face of the optical connector 1 can be very easily and accurately polished.
- the stepped guide bin 11 used for positioning the optical connector 1 and the ferrule 3 has a small diameter pin 13 on the upper side in the figure.
- the small diameter pin 13 is inserted into the pin fitting hole 9 of the optical connector 1 and polished, a relatively large gap is generated between the small diameter pin 13 and the pin fitting hole 9. Polishing of the pin fitting hole 9 by the medium 20 can be suppressed. Therefore, it is possible to reliably prevent a trouble such as an increase in the diameter of the pin fitting hole 9.
- the size of the area including the light path end face is determined by the size of the concave portion 8 of the polishing auxiliary member facing the area, the optical connector 1 and the polishing auxiliary member. It can be freely determined according to the positioning accuracy and the like.
- a diameter of a concave portion (optical fiber insertion hole) 8 of a ferrule 3 as a polishing auxiliary member The diameter of the stepped guide bin 11 was set to 0.698 mm for the large diameter and 0.696 mm for the small diameter. was in the range of about 80 / m in diameter. This is from the outer diameter of 1 ⁇ ⁇ ⁇ of the central core of the optical fiber in the optical path. The distant ground is polished, but the core and the surrounding area are not intended to be touched by the polishing media.
- the diameter of the optical fiber through hole 8 of the above ferrule 3 was changed to about 180 ⁇ m and the polishing was performed, the area of the “small area including the optical path end face” which was not polished was 1 mm in diameter.
- the diameter was in the range of about 135 ⁇ m including 25/1 m optical fiber.
- a straight pin with a 0.69 mm outer diameter (0.7 mm in diameter for the pin fitting hole) is used for the guide pin 11 instead of a step, and the optical fiber insertion hole of the above ferrule 3 is used.
- the area of the ⁇ small area including the optical path end face '' that was not polished was 12.5 / im with a diameter equal to the diameter of the optical fiber 4. It was verified that by changing the conditions, the range of the “small area including the light path end face” that could not be polished could be freely adjusted by changing the conditions.
- the polishing medium 20 has a particle size of
- the abrasive grain size and type of the polishing medium are not particularly limited, and may be appropriately set, and may be, for example, alumina.
- a lapping liquid containing such alumina or diamond may be used.
- the end face of the optical connector 1 is polished in the same manner as in the above embodiment using diamond abrasive grains having a particle diameter of 9 ⁇ m, the area including the connection end face of the optical fiber 4 (including the connection end face of the optical fiber 4 is included) Small area) could protrude from the connection end face of Ferrule 2 around it by about 10 ⁇ m.
- polishing medium 20 used for polishing optical components such as the optical connector 1 is not necessarily one type, and several types of polishing media may be mixed and used. Polishing is performed in multiple stages according to the amount of protrusion of the optical path, and the type of the polishing medium 20 is changed at each stage. You can get it.
- the ferrule 3 has the same shape and the same material as the ferrule 2 of the optical connector 1, but the ferrule 3 may be a ferrule formed of, for example, a metal.
- the optical fiber through hole 8 of the ferrule 3 is a through hole, but a concave portion such as the optical fiber through hole 8 is not necessarily a through hole.
- the concave portion may be formed at a position corresponding to the light path end face such as the above, or at a position corresponding to a region including the light path end face such as the optical fiber 4.
- a soft member 19 which is softer than the material forming the rule 3, is inserted into the concave portion such as the optical fiber through hole 8 of the ferrule 3 (inserting the optical fiber).
- the hole 8) may be provided so as to completely fill the space (that is, a soft member 19 is provided instead of the concave portion at the position where the concave portion of the polishing auxiliary member is formed), or as shown in FIG. 9 (b).
- a soft member 19 may be filled in the concave space except for a small space on the surface side of the concave portion (optical fiber insertion hole 8).
- the processing energy transmitted to the portion facing the concave portion is smaller than the processing energy applied to the ferrule 2 around the concave portion. Therefore, with the same effect as in the above embodiment, the region including the connection end surface of the optical fiber 4 can be polished so as to protrude beyond the connection end surface 5 of the ferrule 2 around the region.
- a soft member 19 which is softer than the material forming the ferrule 3 is provided in the concave portion such as the optical fiber insertion hole 8 of the ferrule 3.
- the connection end surface of the optical connector 1 (Fleur 2)
- the connection end surface of the optical fiber 4 facing the concave portion (soft member 19) is weak. Abrasive power acts.
- this third polishing step section Since fine polishing is continuously performed at 30, the light path end face can be finely polished, and, as described above, since the polishing of the portion other than the portion facing the concave portion 8 is facilitated, The region including the connection end surface of the optical fiber 4 can be projected and polished more effectively than the connection end surface 5 of the surrounding ferrule 2.
- the optical fiber insertion hole 8 of the ferrule 3 is a hole having a circular cross section.
- a recess 32 having a triangular or square cross section may be provided on the end face 6 side of the ferrule 3.
- the shape and the like of the concave portion provided in the polishing auxiliary member such as Ferrule 3 are not particularly limited. It is appropriately set, for example, so as to correspond to the shape of the end face of the optical path of the optical fiber 4 or the like.
- the stepped guide bin 11 is inserted as a fitting pin into the pin fitting hole 9 of the optical connector 1 and the pin fitting hole 10 of the ferrule 3 so that the optical connector 1 and the ferrule are connected.
- a straight pin having no step may be inserted into each of the pin fitting holes 9 and 10 as the fitting pin after performing the positioning in step 3 .
- connection end face 5 side of the optical connector 1 when the connection end face 5 side of the optical connector 1 is polished, the alignment between the ferrule 3 and the optical connector 1 is performed by aligning the pin fitting hole 9 of the optical connector 1 with the pin fitting of the ferrule 3.
- the stepped guide bin 11 was inserted into the mating hole 10
- the optical connector 1 and the ferrule 3 were aligned with reference to the outer shape of the optical connector 1 and the outer shape of the ferrule 3.
- Optical fiber 4 exposed at connection end face 5 of 1 The connection end face 5 of the optical connector 1 may be polished by aligning the through hole 8 of the optical fiber.
- the ferrule 3 side is vibrated by the ultrasonic wave generator 14, but instead of vibrating the ferrule 3 side, the optical connector 1 side may be vibrated.
- the connection end face 5 of the optical connector 1 may be polished by vibrating both the ferrule 1 and the ferrule 3 to move them relative to each other.
- a polishing moving mechanism that vibrates one or both of the end face of the optical connector 1 and the end face of the ferrule 3 (a mechanism that changes the end face distance between the end face of the optical connector 1 and the end face of the ferrule 3 by wide and narrow vibration).
- a vibrator device 99 may be used in place of the ultrasonic generator 14.
- the direction of the vibration (the direction in which the distance between the end face of the optical connector 1 and the end face of the ferrule 3 changes widely and narrowly) is defined as the optical axis direction of the optical path (optical fiber 4).
- the angle of the movement may be any angle as long as the distance between the end face of the optical connector 1 and the end face of the ferrule 3 changes in a wide and narrow vibration direction.
- the ultrasonic generator 1 4 when performing the end face polishing of the optical connector 1, were subjected to polishing ultrasound is generated about 2 0 seconds 2 0 KH Z by the ultrasonic generator 1 4 ultrasonic generator
- the generation frequency, the ultrasonic generation time, and the like generated from the device 14 are not particularly limited, and are set as appropriate. By appropriately setting the ultrasonic wave generation frequency and the ultrasonic wave generation time, a desired optical fiber protrusion amount can be obtained.
- a spring is provided on the ferrule placement table 15 so that the ferrule 3 is pressed against the optical connector 1 side.
- the means for pressing the ferrule 3 against the optical connector 1 side includes a spring Is not limited and is set as appropriate.
- the optical connector 1 is pressed against the ferrule 3 instead.
- the optical connector 1 and the ferrule 3 may be arranged so as to be pressed against each other.
- the configuration of the portion where the optical connector 1 and the ferrule 3 are disposed may take other forms as shown in FIGS. 14 and 15, for example.
- the structure shown in Fig. 14 has a structure in which the upper side of the optical connector 1 is pressed by the pressing member 110, the pressing force of the compression spring 100 is applied to the optical connector 1, and polishing is performed by ultrasonic vibration. It was done.
- the one shown in Fig. 15 is provided with a vibrator device in place of the ultrasonic wave generator 14, the optical connector 1 is held by a holder 210 on the upper side, and the holder 210 and the stopper 200 A gap ⁇ is secured between the optical connectors 1, and in this state, the vibrator device is driven to vibrate, and the end face of the optical connector 1 is polished.
- the optical connector 1 and the holder 210 come together to receive the force of the vibration and collide with the stopper 200, Next, it returns downward due to the reaction, but during the return movement, it is subjected to repeated vibration movement, such as receiving the pushing force of the next vibrator vibration and colliding with the stopper 200, and so on.
- the end face of the optical connector 1 is polished.
- polishing is achieved by interposing abrasive grains (polishing medium) 20 between the optical connector 1 and the ferrule 3.
- connection end face of the optical connector 1 was polished by vibrating the funnel 3 using the ultrasonic generator 14, but instead of the ultrasonic generator 14, the optical connector 1 was used.
- a polishing moving mechanism of a pressure polishing method for applying a pressure to one or both of the ferrules 3 may be used.
- at least one of the optical connector 1 and the ferrule 3 vibrates the end face interval between the end face of the optical connector 1 and the ferrule 3 such as the direction of the optical axis of the optical fiber 4.
- the connection end face 5 of the optical connector 1 is polished by the polishing member 20 while relatively moving in the changing direction.
- connection end face of one optical connector 1 has been described.
- the holding part of the optical component such as the optical connector 1 is configured to hold a plurality of optical components together
- the connection end faces of the components may be polished at once.
- the moving mechanism for polishing such as the ultrasonic wave generator 14 and the like is provided between the connection end face of the optical component group held by the holding part of the optical component and the polishing auxiliary member such as the ferrule 3.
- the gap between the end face of the optical connector 1 and the end face of the ferrule 3 in the optical path of the optical fiber 4 or the like, for example, in the optical axis direction, is wide and narrow.
- the region including the connection end face of the optical path of the optical component group is polished so as to protrude beyond the connection end face of the housing such as the ferrule 2 around the area. In this way, if the apparatus for polishing the end face of the optical component at once is configured, the end face of the optical component can be more efficiently polished.
- the optical connector 1 has the optical fiber 4 made of quartz glass and the ferrule 2 of a molded body of a glass ferrer and an epoxy resin.
- the material of the optical connector 1 to be polished using a polishing apparatus is not particularly limited, and may be, for example, a ceramic such as zirconia.
- the polishing method and the polishing apparatus for the optical component end face according to the present invention include: 5 is the end surface of the multi-fiber optical connector 1 having a surface perpendicular to the optical axis of the optical fiber 4, or the optical fiber 4 is obliquely provided on the ferrule 2 as shown by the chain line in (b) of FIG.
- the end face of the optical connector 1 where the pin mating hole 9 is provided diagonally in the ferrule 2 This is applied when polishing or polishing the connection end faces 5 of various optical connectors 1 such as the single-core optical connector 1 having a curved connection end face 5.
- the end face of the optical connector 1 is polished using the ferrule 3 of the same shape and the same material as the optical connector 1 as the polishing auxiliary member.
- the polishing auxiliary member is not necessarily the ferrule 3.
- a concave portion may be formed at a position corresponding to the optical path end face of the optical component or in a region including the optical path end face of the optical component, or a soft member 19 may be provided in the concave portion as shown in FIG. 9 (b).
- Filling force or, as shown in (a) of FIG. 9, a soft member that is softer than the surrounding area is provided at a position corresponding to the area including the light path end face exposed at the connection end face of the optical component.
- the end face of the optical component can be polished using the polishing auxiliary member.
- the polishing method and the polishing apparatus for the end face of an optical component of the present invention are not limited to the optical connector 1 but also include various methods for polishing the end face of an optical component having an optical path such as an optical fiber 4 or an optical waveguide protruding from a connection end face. And a polishing apparatus. That is, according to the present invention, the connection end face of an optical component other than the optical connector is polished, and an optical path (a region including the end face of the optical path) is projected from the connection end face of the optical component to finish the polishing of the optical component end face. It is widely applied as a polishing method and a polishing apparatus.
- polishing method and the polishing apparatus of the end face of the optical component of the present invention are not limited to the optical component composed of the quartz optical fiber and the plastic ferrule described in the above embodiment, but may be, for example,
- the present invention can also be applied as a polishing method and a polishing apparatus for an optical component having a configuration as shown in the figure.
- the optical component shown in Fig. 11 contains a ferrule 2 as a housing and a Si or quartz substrate in which a multi-core (8-core in the figure) core (material quartz) is formed as an optical path.
- the core of the core is on the connection end face 5 of the optical connector 1.
- the connection end face 5 is exposed and has an inclined surface A at an angle of 82 degrees with respect to the optical axis of the optical path and a surface B orthogonal to the optical axis of the optical path.
- connection end face was polished using a 1-core MPO optical connector as a work.
- the protruding amount in the region including the optical fiber end faces was 4 ⁇ m, and the unevenness of the protruding amounts between the optical fiber end faces was less than 0.5 // m.
- connection performance of this polished optical connector showed that the variation in connection loss between when the matching agent was used and when it was not used was 0.02 dB or less. Good PC connection was achieved.
- connection end face was polished using a 1-core MPO optical connector as a work.
- Vibrator vibration method vibrator frequency 10 OHz, vibrator amplitude about 90 ⁇ , connector holder 210 weight 300 gf, connector holder amplitude about 200 ⁇ m, connector holder 210 vibration
- the frequency is about 100 Hz
- the initial gap between the optical connector 1 and the ferrule 3 at the time of stop is about 150 ⁇ m
- the abrasive medium 20 is diamond abrasive with a particle size of 6 ⁇ m.
- the polishing time was about 120 seconds.
- the protrusion amount of the optical fiber end faces was 2 ⁇ m, and the unevenness of the protrusion amounts between the optical fiber end faces was less than 0.5 ⁇ .
- connection performance of this polished optical connector reveals that the variation in connection loss with and without the matching agent is less than 0.02 dB, achieving extremely good PC connection. I was able to. Industrial applicability
- the optical component according to the present invention is applied to an optical component such as an optical connector for performing PC connection of a type in which an optical path end surface protrudes a predetermined amount from a connection end surface, and a polishing method and a polishing apparatus for an optical component end surface.
- the method is suitable for use as a polishing method and a polishing apparatus for projecting a desired amount of an end face of an optical path from a connection end face of various optical components including an optical connector.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002281730A CA2281730C (en) | 1997-12-16 | 1998-12-15 | Method and device for polishing an end face of an optical fiber ferrule |
EP98959204A EP0967499A4 (en) | 1997-12-16 | 1998-12-15 | OPTICAL PARTS AND METHOD AND DEVICE FOR POLISHING THEIR END SURFACE |
US09/374,120 US6276842B1 (en) | 1997-12-16 | 1999-08-16 | Optical component, method for polishing the end faces of optical component, and apparatus for polishing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36342797 | 1997-12-16 | ||
JP9/363427 | 1997-12-16 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/374,120 Continuation US6276842B1 (en) | 1997-12-16 | 1999-08-16 | Optical component, method for polishing the end faces of optical component, and apparatus for polishing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999031538A1 true WO1999031538A1 (fr) | 1999-06-24 |
Family
ID=18479281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/005650 WO1999031538A1 (fr) | 1997-12-16 | 1998-12-15 | Pieces optiques et procede et dispositif de polissage de leur surface d'extremite |
Country Status (4)
Country | Link |
---|---|
US (1) | US6276842B1 (ja) |
EP (1) | EP0967499A4 (ja) |
CA (1) | CA2281730C (ja) |
WO (1) | WO1999031538A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6793403B2 (en) * | 2000-12-15 | 2004-09-21 | The Furukawa Electric Co., Ltd. | Method of producing ferrule and ferrule |
JP2003019649A (ja) * | 2001-07-05 | 2003-01-21 | Seiko Instruments Inc | 端面研磨装置 |
US6632026B2 (en) * | 2001-08-24 | 2003-10-14 | Nihon Microcoating Co., Ltd. | Method of polishing optical fiber connector |
JP2003205447A (ja) * | 2002-01-08 | 2003-07-22 | Nippon Electric Glass Co Ltd | 光ファイバ付フェルール端面の研磨方法、光コネクタの組立方法、及び光ファイバ成端キット |
US6599030B1 (en) * | 2002-02-08 | 2003-07-29 | Adc Telecommunications, Inc. | Method for polishing a fiber optic connector |
AU2003259535A1 (en) * | 2002-12-20 | 2004-07-14 | Sagitta Engineering Solutions Ltd. | A system and a method for polishing optical connectors |
US6918816B2 (en) | 2003-01-31 | 2005-07-19 | Adc Telecommunications, Inc. | Apparatus and method for polishing a fiber optic connector |
US7068906B2 (en) * | 2004-06-14 | 2006-06-27 | Adc Telecommunications, Inc. | Fixture for system for processing fiber optic connectors |
US7352938B2 (en) * | 2004-06-14 | 2008-04-01 | Adc Telecommunications, Inc. | Drive for system for processing fiber optic connectors |
US7209629B2 (en) * | 2004-06-14 | 2007-04-24 | Adc Telecommunications, Inc. | System and method for processing fiber optic connectors |
US8109679B2 (en) * | 2008-11-25 | 2012-02-07 | Corning Cable Systems Llc | Optical ferrule assemblies and methods of making the same |
US8840318B2 (en) * | 2012-10-15 | 2014-09-23 | Corning Cable Systems Llc | Ferrule with stress-isolation feature |
US20140105545A1 (en) * | 2012-10-15 | 2014-04-17 | Corning Cable Systems Llc | Graded composition for optical waveguide ferrule |
US9880362B2 (en) | 2012-10-22 | 2018-01-30 | Corning Optical Communications LLC | Methods of securing one or more optical fibers to a ferrule |
US9140861B2 (en) | 2013-03-14 | 2015-09-22 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Optical connector having stepped alignment pins |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02109667A (ja) * | 1988-10-13 | 1990-04-23 | Office Natl Etud Rech Aerospat <Onera> | 超音波研削機械 |
JPH08126951A (ja) * | 1994-10-31 | 1996-05-21 | Furukawa Electric Co Ltd:The | 多心光コネクタの研磨方法 |
JPH09248750A (ja) * | 1996-03-12 | 1997-09-22 | Nippon Telegr & Teleph Corp <Ntt> | 光ファイバーコネクタ端面加工方法及び装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5245790A (en) * | 1992-02-14 | 1993-09-21 | Lsi Logic Corporation | Ultrasonic energy enhanced chemi-mechanical polishing of silicon wafers |
US5349784A (en) * | 1992-07-10 | 1994-09-27 | Molex Incorporated | Optical fiber polishing apparatus |
KR100269825B1 (ko) * | 1993-04-30 | 2000-10-16 | 미야즈 준이찌로 | 광코넥터 및 그 제조방법(optical connector and method thereof) |
JPH1177506A (ja) * | 1997-09-05 | 1999-03-23 | Seiko Instr Inc | 端面研磨洗浄装置 |
JP2985075B2 (ja) * | 1998-04-23 | 1999-11-29 | セイコーインスツルメンツ株式会社 | 光コネクタ用フェルールの凸球面研磨方法 |
-
1998
- 1998-12-15 CA CA002281730A patent/CA2281730C/en not_active Expired - Fee Related
- 1998-12-15 WO PCT/JP1998/005650 patent/WO1999031538A1/ja not_active Application Discontinuation
- 1998-12-15 EP EP98959204A patent/EP0967499A4/en not_active Withdrawn
-
1999
- 1999-08-16 US US09/374,120 patent/US6276842B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02109667A (ja) * | 1988-10-13 | 1990-04-23 | Office Natl Etud Rech Aerospat <Onera> | 超音波研削機械 |
JPH08126951A (ja) * | 1994-10-31 | 1996-05-21 | Furukawa Electric Co Ltd:The | 多心光コネクタの研磨方法 |
JPH09248750A (ja) * | 1996-03-12 | 1997-09-22 | Nippon Telegr & Teleph Corp <Ntt> | 光ファイバーコネクタ端面加工方法及び装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0967499A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0967499A1 (en) | 1999-12-29 |
EP0967499A4 (en) | 2005-01-05 |
CA2281730C (en) | 2007-07-03 |
US6276842B1 (en) | 2001-08-21 |
CA2281730A1 (en) | 1999-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1999031538A1 (fr) | Pieces optiques et procede et dispositif de polissage de leur surface d'extremite | |
US5184433A (en) | Fiber optic polisher | |
US6939055B2 (en) | Stub having an optical fiber | |
US4818263A (en) | Method and apparatus for precisely positioning microlenses on optical fibers | |
US5667426A (en) | Method of polishing the end face of a ferrule on an optical connector | |
JPH05181034A (ja) | 光ファイバ組立体およびその製造方法および光ファイバ接続体 | |
JP3752088B2 (ja) | 光部品並びにその光部品端面の研磨方法および研磨装置 | |
JP2000137143A (ja) | 光ファイバ装置及びその製造方法 | |
JP3140719B2 (ja) | 光ファイバ先端の面取り加工装置および方法 | |
JP3535903B2 (ja) | 多心光コネクタの研磨方法 | |
JP2017173539A (ja) | 光コネクタ及び光結合構造 | |
WO2006055080A1 (en) | Fiber polishing apparatus and method for field terminable optical connectors | |
JPH08313758A (ja) | 光導波路の光結合方法および導波路素子光結合器 | |
JP3406295B2 (ja) | 光導波路素子の断面処理方法 | |
JP2002333528A (ja) | 光コネクタの端面研磨方法および光コネクタ | |
KR100455927B1 (ko) | 광파이버 렌즈의 렌즈면 연마 장치 및 방법 | |
JPH0580225A (ja) | 光フアイバアレイ | |
JP5412235B2 (ja) | 光ファイバ用フェルール、光導波路と光ファイバとの接続方法 | |
JPH03505262A (ja) | フッ化物ガラス光結合素子、結合器および方法 | |
KR20040036212A (ko) | 고밀도 광섬유 어레이 블록 및 제작방법 | |
JPH0815566A (ja) | 光コネクタの製造方法 | |
JPH06208039A (ja) | 光導波路の接続方法および接続治具 | |
JPH0534544A (ja) | 光フアイバ多心コネクタプラグ | |
JP2001324652A (ja) | 光コネクタ接続端面の研磨装置および研磨方法 | |
JPH1086052A (ja) | 光ファイバコネクタの研磨方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998959204 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2281730 Country of ref document: CA Ref country code: CA Ref document number: 2281730 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09374120 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 1998959204 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1998959204 Country of ref document: EP |