CN115079357A - Reflector and WDM combined device and combining method - Google Patents
Reflector and WDM combined device and combining method Download PDFInfo
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- CN115079357A CN115079357A CN202210763135.8A CN202210763135A CN115079357A CN 115079357 A CN115079357 A CN 115079357A CN 202210763135 A CN202210763135 A CN 202210763135A CN 115079357 A CN115079357 A CN 115079357A
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- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
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- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4239—Adhesive bonding; Encapsulation with polymer material
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/424—Mounting of the optical light guide
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4244—Mounting of the optical elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Embodiments of the present application provide a mirror and WDM combined device and method of combining, the combined device including a pigtail assembly, a small glass tube, a large glass tube, and a reflective assembly; the tail fiber assembly is used for coupling equipment of an input light source and equipment of an output light source and is used for transmission of the light source; the small glass tube is used for connecting the tail fiber assembly and the large glass tube; the reflection assembly is installed inside the large glass tube and used for receiving and reflecting the light source. This application has the effect that improves work efficiency, convenient operation, and reduce the yellow total loss of light path transmission.
Description
Technical Field
The present application relates to the field of optical fiber communication, and in particular, to a mirror and WDM combined device and method.
Background
At present, the ASE light source is transmitted by a 980 pump light source, an erbium-doped fiber, a reflector, a WDM, an isolator, a filter and a beam splitter. 980 pump light source and erbium-doped fiber all with the WDM butt fusion, with the speculum butt fusion in one side of WDM, the isolator butt fusion is in the opposite side of WDM, the wave filter butt fusion is in the isolator keep away from one side of WDM, the beam splitter butt fusion is in the one side that the isolator was kept away from to the wave filter. 980 pump light is transmitted into the erbium-doped fiber through the WDM, light of a C wave band is excited, one part of the light of the C wave band is output through the filter and the beam splitter along the isolator, the other part of the light returns to the reflector along the WDM, and then the reflector reflects the light of the C wave band, so that the light of the C wave band is output through the WDM, the isolator, the filter and the beam splitter in sequence.
The ASE light source is mainly transmitted through the reflector and the WDM, the cost for purchasing a single device is high for workers, the reflector and the WDM need to be welded together when the workers perform experiments, the risk of optical path loss and reliability is increased, and welding points need to be protected, so a large amount of previous work needs to be prepared before use, the working efficiency is low, and the operation is not easy.
Disclosure of Invention
In order to improve the working efficiency, facilitate the operation and reduce the transmission loss in the optical path, a reflector and WDM combined device and a combined method are provided.
In a first aspect of the present application, a mirror and WDM combination device is provided.
A reflector and WDM combined device comprises a tail fiber component, a small glass tube, a large glass tube and a reflector component;
the tail fiber assembly is used for coupling equipment of an input light source and equipment of an output light source and is used for transmission of the light source;
the small glass tube is used for connecting the tail fiber assembly and the large glass tube;
the reflection assembly is installed inside the large glass tube and used for receiving and reflecting the light source.
By adopting the technical scheme, the tail fiber assembly, the small glass tube, the large glass tube and the reflection assembly are assembled together to form the whole device. The light source is input from the tail fiber assembly, is reflected by the reflection assembly in the large glass tube and then returns to the tail fiber assembly again, and then the light source is output. The whole equipment does not need to be assembled when used every time, can improve the working efficiency of workers, is simple and convenient to operate, and can reduce the loss in optical path transmission.
Optionally, the pigtail assembly comprises a glass capillary and an optical fiber, the optical fiber being placed inside the glass capillary and retaining a connector for coupling with a device of the input light source and the output light source.
Optionally, the optical fiber is provided in plurality, and each of the plurality of optical fibers is inserted into the glass capillary.
Optionally, one end of the glass capillary tube, which is not provided with the joint, is inserted into the small glass tube and is connected with the small glass tube through optical cement; and one end of the small glass tube, which is far away from the tail fiber assembly, is connected with the large glass tube through optical cement.
Optionally, the reflective component comprises a lens, a WDM, a carrier and a mirror;
the lens is arranged at one end of the large glass tube close to the small glass tube;
the carrier is placed in the large glass tube and is of a through structure;
the WDM is attached to one end of the carrier close to the lens;
the reflector is attached to one end, away from the lens, of the carrier.
Optionally, the Lens is a C-Lens.
Optionally, the glass tube comprises a small glass tube and a large glass tube, and the small glass tube and the large glass tube are sleeved with the protective sleeve.
In a second aspect of the application, there is provided a mirror and WDM combination method, the method comprising:
s100: inserting a plurality of optical fibers into the glass capillary, and then polishing the end faces and plating an antireflection film to prepare a tail fiber assembly;
s200: respectively attaching the WDM and the reflector to two end surfaces of the carrier and placing the carrier into the large glass tube;
s300: installing a lens at one end of the large glass tube close to the WDM;
s400: inserting the tail fiber assembly into the small glass tube, fixing the small glass tube and the large glass tube together by using optical cement, and fixing one end of the small glass tube, which is close to the tail fiber assembly, and one end of the large glass tube, which is close to the lens, by using the optical cement;
s500: and sleeving a protective sleeve on the outer walls of the small glass tube and the large glass tube.
To sum up, the application comprises the following beneficial technical effects:
and assembling the tail fiber assembly, the small glass tube, the large glass tube and the reflection assembly together to form the whole device. The light source is input from the tail fiber assembly, is reflected by the reflection assembly in the large glass tube and then returns to the tail fiber assembly again, and then the light source is output. The whole equipment does not need to be assembled when used every time, can improve the working efficiency of workers and is simple and convenient to operate.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of an embodiment of the present application;
FIG. 2 is a block diagram of the steps of a mirror and WDM combining method according to an embodiment of the present application.
Description of reference numerals: 10. a pigtail assembly; 11. an optical fiber; 12. a glass capillary tube; 20. a small glass tube; 30. a large glass tube; 31. sealing the cover plate; 40. a reflective component; 41. a lens; 42. WDM; 43. a carrier; 44. a mirror; 50. and (5) protecting the sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the existing scheme, in the experiment, the WDM and the reflector are mainly used for welding, and other auxiliary devices are added to complete the transmission of the light source. When every time of carrying out the experiment, all need assemble WDM, speculum and other auxiliary device, the work is loaded down with trivial details earlier stage, and work efficiency is low, and the butt fusion between WDM and the speculum can cause the optical path loss.
The embodiments of the present application will be described in further detail with reference to the drawings attached hereto.
Referring to fig. 1 and 2, a mirror and WDM assembled device includes a pigtail assembly 10, a small glass tube 20, a large glass tube 30, a reflective assembly 40, and a protective sleeve 50.
The pigtail assembly 10 is used for coupling devices that input light sources and devices that output light sources, and for transmission of light sources. The pigtail assembly 10 comprises a glass capillary 12 and two optical fibers 11, both optical fibers 11 being inserted inside a glass wool tube. The end of the optical fiber 11 not inserted into the glass capillary 12 leaves a connection for coupling to a device for inputting and outputting light sources. The optical fiber 11 is respectively connected with a 980 pump laser and an erbium-doped optical fiber through a retaining joint, the 980 pump laser is used for generating a light source and inputting the light source, the generated light source has the advantage of low noise coefficient, and the erbium-doped optical fiber is used for receiving the light source after the light source is reflected by the reflecting component 40 and exciting to generate light of a C wave band.
The small glass tube 20 is used to connect the pigtail assembly 10 and the large glass tube 30. The end of the glass capillary 12 far away from the 980 pump laser is inserted into the small glass tube 20, and the end of the small glass tube 20 far away from the 980 pump laser is bonded with one end of the large glass tube 30 through an optical cement.
The reflective assembly 40 is for receiving and reflecting the light source. The reflective assembly 40 comprises a lens 41, a WDM42, a carrier 43 and a mirror. The lens 41 is installed inside the large glass tube 30 and is located at one end of the large glass tube 30 near the small glass tube 20. The Lens 41 adopts a C-Lens which has good corrosion resistance and extremely high transmittance, so that a light source can better transmit, and the loss of a light path is reduced. The WDM42, carrier 43 and mirror are all placed inside the large glass tube 30. The carrier 43 has a through structure, that is, the carrier 43 is provided with a through hole along the length direction of the large glass tube 30. A WDM42 is attached to one end of the carrier 43 near the lens 41. A reflector 44 is attached to the end of the carrier 43 remote from the lens 41 for reflecting the light source. The reflecting mirror 44 is a total reflection mirror 44, and the total reflection mirror 44 can increase the reflectivity and totally reflect the light source.
The large glass tube 30 is provided with a cover plate 31, and the cover plate 31 is installed at one end of the large glass tube 30 far away from the small glass tube 20.
The protection sleeve 50 is sleeved on the outer walls of the small glass tube 20 and the large glass tube 30 and used for protecting the small glass tube 20 and the large glass tube 30 and preventing the small glass tube 20 and the large glass tube 30 from being touched and damaged during operation.
In summary, the 980 pump laser is connected to the joint of one optical fiber 11, the light source generated by the 980 pump laser is transmitted through the optical fiber 11, passes through the lens 41, and reaches the reflector 44 through the WDM42, the reflector 44 reflects all the light source, and makes the light source pass through the WDM42 and the lens 41 in sequence to reach the optical fiber 11 of the device connected with the output light source, the optical fiber 11 is connected with the erbium-doped optical fiber, and the light source is transmitted to the erbium-doped optical fiber. The erbium-doped fiber can excite the light source to emit light in a C waveband, due to the characteristics of the erbium-doped fiber, one part of the light in the C waveband can enter next transmission equipment along the erbium-doped fiber, the other part of the light in the C waveband can return to the optical fiber 11 and sequentially passes through the lens 41 and the WDM42 to reach the reflector 44, and the reflector 44 totally reflects the light in the C waveband, sequentially passes through the WDM42, the lens 41 and the optical fiber 11 to be transmitted to the erbium-doped fiber again, and then passes along the erbium-doped fiber to enter next transmission equipment. This process is the transmission process of the light source. And the tail fiber assembly 10, the small glass tube 20, the large glass tube 30, the reflection assembly 40 and the protection sleeve 50 are assembled into a device, so that the size of the device can be reduced, and the effect of saving space is achieved. And the staff does not need to do excessive earlier work when using, and only needs to couple the 980 pump laser and the erbium-doped fiber with the reserved joints of the two fibers 11 respectively.
In another aspect, the present embodiment provides a mirror and WDM combining method.
S100: a plurality of optical fibers 11 are inserted into a glass capillary 12, and then the pigtail assembly 10 is manufactured after end face polishing and antireflection film plating.
In this embodiment, there are two optical fibers 11, one end of each of the two optical fibers 11 is inserted into the glass capillary 12 from one end of the glass capillary 12, and the other end is retained outside the glass capillary 12, so as to couple the input light source and the output light source, and enable the light source to transmit on the optical fiber 11. Then, the other end of the glass capillary 12 is polished and plated with an antireflection film, so that the glossiness of the end face of the glass capillary 12 can be improved, the effects of oxidation resistance, acid and alkali resistance can be achieved, and a good protection effect can be achieved.
S200: the WDM42 and the mirror 44 are attached to both end faces of the carrier 43, respectively, and are placed inside the large glass tube 30.
It can be understood that the carrier 43 is made of glass material, and a through hole is formed at the center of the carrier 43.
The carrier 43 is placed horizontally on an office shelf with the through holes now oriented in a vertical direction. The now upward facing end face of the carrier 43 is coated with optical glue and WDM42 is placed on top with the center of WDM42 aligned with the center of the via and WDM42 in tight engagement with the carrier 43.
After WDM42 has been secured with carrier 43, carrier 43 is inverted so that the end of carrier 43 on which WDM42 is mounted faces vertically downwards. The end face of the carrier 43 facing upwards is coated with an optical glue and the mirror 44 is placed on top so that the centre of the mirror 44 is aligned with the centre of the through hole and the mirror 44 is in tight engagement with the carrier 43.
After the mirror 44 is fixed to the carrier 43, it is removed from the office shelf.
The worker takes out the large glass tube 30, and both ends of the large glass tube 30 are open. The carrier 43 is put into the inside of the large glass tube 30 from one end of the large glass tube 30, and the circumferential wall of the carrier 43 is brought into close contact with the inner wall of the large glass tube 30.
The cover plate 31 is taken out, the optical glue is coated on the cover plate 31, and then the cover plate 31 is pressed on one end of the large glass tube 30 close to the reflector 44, so that the cover plate 31 and the large glass tube 30 are fixed together.
S300: a lens 41 is mounted at the end of the large glass tube 30 near the WDM 42.
The large glass tube 30 is placed vertically on the office shelf with the end of the carrier 43 on which the WDM42 is mounted facing upward. The lens 41 is installed at the current upward port of the large glass tube 30, the circumferential wall of the lens 41 is abutted against the inner wall of the large glass tube 30, and optical cement is coated along the gap between the lens 41 and the large glass tube 30, so that the lens 41 and the large glass tube 30 are fixed together.
S400: the pigtail assembly 10 is inserted inside the small glass tube 20 and fixed together using optical cement, and then the end of the small glass tube 20 away from the pigtail assembly 10 and the end of the large glass tube 30 close to the lens 41 are fixed by optical cement.
The worker takes out the small glass tube 20, the inner diameter of the small glass tube 20 is larger than that of the large glass tube 30, and the inner diameter of the small glass tube 20 is larger than the outer diameter of the glass capillary tube 12.
The end of the pigtail assembly 10 without the joint is inserted into the small glass tube 20, the circumferential wall of the glass capillary 12 is abutted against the inner wall of the small glass tube 20, and the optical cement is coated along the gap between the glass capillary 12 and the small glass tube 20, so that the glass capillary 12 and the small glass tube 20 are fixed together.
The end face of the small glass tube 20 far away from the end of the pigtail assembly 10 is coated with optical cement, and the end face of the large glass tube 30 near the lens 41 is coated with optical cement. The two end faces currently coated with the optical cement are pressed to fix the small glass tube 20 and the large glass tube 30 together.
S500: a protective sleeve 50 is fitted over the outer walls of the small glass tube 20 and the large glass tube 30.
The worker takes out the protection sleeve 50, one end of the protection sleeve 50 is open, the other end of the protection sleeve is closed, and the protection sleeve 50 is made of metal materials. The end of the large glass tube 30 away from the pigtail assembly 10 is directed toward the bottom end of the inner wall of the protective sleeve 50, and the large glass tube 30 is moved toward the inside of the protective sleeve 50 until the large glass tube 30, the small glass tube 20, and the pigtail assembly 10 all enter the inside of the protective sleeve 50. At this moment, the one end that tail optical fiber subassembly 10 was kept away from to big glass pipe 30 and protective sleeve 50's inner wall bottom butt, the outer wall of little glass pipe 20 and the outer wall of big glass pipe 30 all with protective sleeve 50's inner wall butt, the light joint that tail optical fiber subassembly 10 stayed is located protective sleeve 50's outside.
In summary, the two optical fibers 11, the glass capillary tube 12, the small glass tube 20, the large glass tube 30, the lens 41, the WDM42, the carrier 43, the mirror 44, the cover 31, and the protection sleeve 50 are assembled into a whole, so that the fusion point in the optical path can be reduced, and the optical path loss can be reduced. And the cost of purchasing these materials is low, compared with the existing scheme in the background art, the cost is reduced by half.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the application referred to in the present application is not limited to the embodiments with a particular combination of the above-mentioned features, but also encompasses other embodiments with any combination of the above-mentioned features or their equivalents without departing from the spirit of the application. For example, the above features may be replaced with (but not limited to) features having similar functions as those described in this application.
Claims (8)
1. A mirror and WDM combined device characterized by: comprises a tail fiber component (10), a small glass tube (20), a large glass tube (30) and a reflection component (40);
the pigtail assembly (10) is used for coupling a device for inputting a light source and a device for outputting the light source and is used for transmitting the light source;
the small glass tube (20) is used for connecting the tail fiber assembly (10) and the large glass tube (30);
the reflection assembly (40) is installed inside the large glass tube (30) for receiving and reflecting the light source.
2. A mirror and WDM combined device according to claim 1, wherein: the pigtail assembly (10) comprises a glass capillary (12) and an optical fiber (11), wherein the optical fiber (11) is placed inside the glass capillary (12) and is provided with a joint for coupling with equipment of an input light source and an output light source.
3. A mirror and WDM combined device according to claim 2, wherein: the optical fibers (11) are provided in plurality, and the optical fibers (11) are inserted into the glass capillary (12).
4. A mirror and WDM combined device according to claim 2, wherein: one end of the glass capillary tube (12) without a joint is inserted into the small glass tube (20) and connected with the small glass tube through optical cement; one end of the small glass tube (20) far away from the tail fiber assembly (10) is connected with the large glass tube (30) through optical cement.
5. A mirror and WDM combined device according to claim 1, wherein: the reflection assembly (40) comprises a lens (41), a WDM (42), a carrier (43) and a mirror;
the lens (41) is arranged at one end of the large glass tube (30) close to the small glass tube (20);
the carrier (43) is placed inside the large glass tube (30) and is of a through structure;
the WDM (42) is attached to one end of the carrier (43) close to the lens (41);
the reflector (44) is attached to the end of the carrier (43) facing away from the lens (41).
6. A mirror and WDM combined device according to claim 5, wherein: the Lens (41) adopts a C-Lens.
7. A mirror and WDM assembly according to claim 1, wherein: the glass tube protective sleeve further comprises a protective sleeve (50), and the protective sleeve (50) is sleeved on the outer walls of the small glass tube (20) and the large glass tube (30).
8. A method of combining a mirror with a WDM, characterized by: comprises that
S100: inserting a plurality of optical fibers (11) into a glass capillary (12), and then polishing the end face and plating an anti-reflection film to manufacture a tail fiber assembly (10);
s200: respectively attaching the WDM (42) and the reflector (44) to two end faces of the carrier (43) and placing the carrier and the reflector into the large glass tube (30);
s300: mounting a lens (41) at one end of the large glass tube (30) close to the WDM (42);
s400: inserting the tail fiber assembly (10) into the small glass tube (20), fixing the small glass tube (20) and the large glass tube (30) together by using optical cement, wherein one end of the small glass tube (20) close to the tail fiber assembly (10) and one end of the large glass tube (30) close to the lens (41) are fixed by using the optical cement;
s500: and a protective sleeve (50) is sleeved on the outer walls of the small glass tube (20) and the large glass tube (30).
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Cited By (1)
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CN115236802A (en) * | 2022-07-14 | 2022-10-25 | 厦门贝莱信息科技有限公司 | Manufacturing process of wavelength division multiplexing assembly with connector |
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CN114355513A (en) * | 2022-01-18 | 2022-04-15 | 北京航空航天大学 | Rotary light reflector with reciprocal light path characteristic |
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CN115236802A (en) * | 2022-07-14 | 2022-10-25 | 厦门贝莱信息科技有限公司 | Manufacturing process of wavelength division multiplexing assembly with connector |
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