CN2552018Y - Optical fibre collimator - Google Patents
Optical fibre collimator Download PDFInfo
- Publication number
- CN2552018Y CN2552018Y CN02265195U CN02265195U CN2552018Y CN 2552018 Y CN2552018 Y CN 2552018Y CN 02265195 U CN02265195 U CN 02265195U CN 02265195 U CN02265195 U CN 02265195U CN 2552018 Y CN2552018 Y CN 2552018Y
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- optical
- microlens
- fiber head
- incidence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 89
- 230000003287 optical effect Effects 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 239000003292 glue Substances 0.000 abstract description 18
- 238000013461 design Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- -1 pottery Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses an optical fiber collimator which is provided with an optical fiber head, an optic micro-lens and a connecting element. The utility model has the advantages that the utility model only needs one connecting member with special design, can reduce the size of the optical fiber collimator, and does not affect the working performance of the collimator; accordingly, the miniature optical fiber collimator with small size and good performance is made. The optical fiber head is connected to the optic micro-lens by the connecting element with special design, and are glued and packed commendably. The shape and size design of the connecting element makes the integral outside diameter of the glued and packed device not greater than the outside diameters of the optical fiber head and the optics micro-lens. Moreover, an optical path has no glue, which does not affect the working performance. Besides, the connecting element the advantages of simple process and low cost.
Description
Technical field
The utility model relates to the optical device that uses in a kind of optical-fibre communications, relates in particular to a kind of optical fiber collimator.
Background technology
In present fiber optic passive device, the most frequently used optical fiber collimator structure as shown in Figure 1.101 is optical fiber among the figure, and 102 is that optical fiber 101 glues together the optical fiber head that constitutes with the optical fiber kapillary, and 103 is optical microlens, and it can be GRIN Lens, spherical lens or non-spherical lens.104 for being connected and fixed the sleeve pipe of optical fiber head 102 and optical microlens 103.Optical fiber head 102 exiting surfaces and optical microlens 103 planes of incidence are worn into the clinoplane that becomes with the central axis of optical fiber head 102 and optical microlens 103 about 82 °, and plate anti-reflection film.Optical fiber head 102 and optical microlens 103 are enclosed within sleeve pipe 104 the insides, and the distance between fine setting optical fiber head 102 and the optical microlens 103 places the focus place of optical lens with the light-emitting window of optical fiber head, and blended rubber glues together, and promptly makes optical fiber collimator.
In present fiber optic passive device, also adopt another kind of optical fiber collimator sometimes, as shown in Figure 2.101 is optical fiber among the figure, and 102 is that optical fiber 101 glues together the optical fiber head that constitutes with the optical fiber kapillary, and 103 is optical microlens.Same optical fiber head 102 exiting surfaces and optical microlens 103 planes of incidence are worn into the clinoplane that becomes with the central axis of optical fiber head 102 and optical microlens 103 about 82 °.204 is refractive index match glue.The plane of incidence of the exiting surface of optical fiber head 102 and optical microlens 103 all plates the anti-reflection film that is complementary with glue-line.Glue-line 204 as thin as a wafer, the distance between fine setting optical fiber head 102 and the optical microlens 103 places lens focus with the light-emitting window of optical fiber head 102, glue 204 solidifies, and connects optical fiber head 102 and optical microlens 103, promptly makes optical fiber collimator.
Conventional fiber collimating apparatus profile diameter is generally: about φ 1.4～2.8mm, when requiring size littler and when keeping well behaved collimating apparatus, will there be major defect in above traditional structure.
For example, for onesize element (optical fiber head and optical microlens), if adopt traditional collimator structure shown in Figure 1, employed fixed sleeving can increase the overall dimensions of collimating apparatus undoubtedly greatly, and is inadvisable; Secondly, if adopt another traditional collimator structure as shown in Figure 2, directly the oblique angle face of optical fiber head and optical microlens is glued together with glue, though can remove the size increase that fixed muffle causes, light signal can influence working performance of devices by (light path has glue) from glue-line.So traditional collimator structure shown in Figure 2 is to be that cost realizes reducing of collimator size to reduce serviceability, is not best solution.
Summary of the invention
The purpose of this utility model provides a kind of novel optical fiber collimating apparatus, makes the optical fiber collimator size of making littler, and does not influence working performance of devices.Make easily, cost is low.
It has optical fiber head, optical microlens and web member.
The utility model has the advantages that: only the web member of a particular design of need can realize reducing the size of optical fiber collimator, does not influence the purpose of collimating apparatus serviceability again, thereby produces the good mini optical fibre collimating apparatus of the little performance of size.Web member with particular design between optical fiber head and optical microlens interconnects, and gummed encapsulation well.The design of web member shape and size makes the entire outer diameter of gummed encapsulated device be not more than its element: the external diameter of optical fiber head and optical microlens, and do not have glue on the light path, do not influence its serviceability.In addition, the processing of web member is simple, and cost is low.
Description of drawings
Fig. 1 is a traditional fiber collimator structure synoptic diagram;
Fig. 2 is another kind of optical fiber collimator structural representation;
Fig. 3 is the utility model optical fiber collimator structural representation.
Specific implementation method
Optical fiber collimator has optical fiber head 102, optical microlens 103 and web member 304.
The plane of incidence of said optical microlens is a clinoplane.The angle of its face normal and optical microlens main shaft is 6～12 °, and the exit facet of optical microlens is perpendicular to main shaft, and its face shape is plane, sphere, counterfeit sphere or aspheric surface.
The exiting surface of optical fiber head is a clinoplane, and its inclination angle equates with the inclination angle of the optical microlens plane of incidence.The exiting surface of optical fiber head and the plane of incidence of optical microlens and exit facet plate anti-reflection film.
Web member is packing ring or pad.Its thickness is less than the distance between the optical fiber head exiting surface and the optical microlens plane of incidence, and external diameter is less than or equal to the diameter of optical fiber head and optical microlens, and internal diameter is greater than the clear aperture near main shaft.
The material of web member is metal, pottery or glass.
Be connected with epoxy resin (305), (306) gummed between web member and the optical fiber head exiting surface and the optical microlens plane of incidence.
A kind of typical case who Figure 3 shows that the utility model optical fiber collimator structure embodies (web member is an annular pad).Wherein 101 is optical fiber, and 102 for optical fiber 101 and kapillary glue together the optical fiber head of making, and its exiting surface keeps 6～12 ° of pitch angle.Optical microlens 103 also is with 6～12 ° of pitch angle, and the exiting surface of optical microlens 103 is perpendicular to the plane of lens main shaft or curved surface (sphere, aspheric surface or other face shape).The plane of incidence of the exiting surface of optical fiber head 102 and optical microlens 103 and exit facet can plate anti-reflection film.The material of web member 304 is for any material of bad reaction can not take place again with optical fiber head 102 and optical microlens 103 good gummeds, as metal, pottery, glass or the like; Web member 304 be shaped as the annular thin slice, its thickness is slightly less than the designed distance between optical fiber head 102 exiting surfaces and optical microlens 103 planes of incidence, like this when web member be between optical fiber head 102 exiting surfaces and optical microlens 103 planes of incidence blended rubber fixing after, optical fiber head 102 light-emitting windows just in time are positioned at the focus place of optical microlens 103, are output as collimated light beam after making light by lenticule; The external diameter of web member 304 is less than or equal to the diameter of optical fiber head 102 and optical microlens 103, is not more than the diameter of optical fiber head 102 and optical microlens 103 with the external diameter that guarantees gummed back optical fiber collimator; The internal diameter of web member 304 is greater than the clear aperature between optical fiber head 102 exiting surfaces and optical microlens 103 planes of incidence, during point glue, because capillary effect, liquid glue can infiltrate the joint of web member and the optical fiber head exiting surface and the optical microlens plane of incidence automatically, be on the garden anchor ring of web member, and be full of whole anchor ring and make gummed good, and the center of anchor ring does not have glue and infiltrates, guarantee so not have glue on the clear aperature, do not influence the serviceability of optical fiber collimator.
When making collimating apparatus, earlier with web member 304 and optical microlens 103 planes of incidence gummed, fine setting web member 304 positions are located at the positive center of lenticule 103 planes of incidence, and glue 306 solidifies; Again with this gummed part and optical fiber head 102 exiting surfaces gummed, distance between fine setting gummed part and the optical fiber head 102 makes the light-emitting window of optical fiber head 102 be positioned at optical microlens 103 focus places, and glue 305 solidifies, connect virgin rubber component and optical fiber head 102, promptly make the utility model optical fiber collimator.Otherwise, change the gummed sequencing and also can.Can be earlier with web member 304 and optical fiber head 102 exiting surfaces gummed, fine setting web member 304 positions are located at the positive center of optical fiber head 102 exiting surfaces, and glue 305 solidifies; Again with this gummed part and optical microlens 103 planes of incidence gummed, distance between fine setting gummed part and the optical microlens 103, make the light-emitting window of optical fiber head 102 be positioned at optical microlens 103 focus places, glue 306 solidifies, connect virgin rubber component and optical microlens 103, promptly make the utility model optical fiber collimator.
Claims (7)
1. an optical fiber collimator is characterized in that it has optical fiber head (102), optical microlens (103) and web member (304).
2. a kind of optical fiber collimator according to claim 1, the plane of incidence that it is characterized in that said optical microlens is a clinoplane, the angle of its face normal and optical microlens main shaft is 6～12 °, the exit facet of optical microlens is perpendicular to main shaft, and its face shape is plane, sphere, counterfeit sphere or aspheric surface.
3. a kind of optical fiber collimator according to claim 1, the exiting surface that it is characterized in that said optical fiber head is a clinoplane, its inclination angle equates with the inclination angle of the optical microlens plane of incidence.
4. a kind of optical fiber collimator according to claim 1 is characterized in that the exiting surface of said optical fiber head and the plane of incidence and the exit facet of optical microlens plate anti-reflection film.
5. a kind of optical fiber collimator according to claim 1, it is characterized in that said web member is packing ring or pad, its thickness is less than the distance between the optical fiber head exiting surface and the optical microlens plane of incidence, external diameter is less than or equal to the diameter of optical fiber head and optical microlens, and internal diameter is greater than the clear aperture near main shaft.
6. a kind of optical fiber collimator according to claim 1, the material that it is characterized in that said web member is metal, pottery or glass.
7. a kind of optical fiber collimator according to claim 1 is characterized in that being connected with epoxy resin (305), (306) gummed between said web member and the optical fiber head exiting surface and the optical microlens plane of incidence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02265195U CN2552018Y (en) | 2002-06-28 | 2002-06-28 | Optical fibre collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02265195U CN2552018Y (en) | 2002-06-28 | 2002-06-28 | Optical fibre collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2552018Y true CN2552018Y (en) | 2003-05-21 |
Family
ID=33731258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02265195U Expired - Fee Related CN2552018Y (en) | 2002-06-28 | 2002-06-28 | Optical fibre collimator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2552018Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI463202B (en) * | 2009-12-17 | 2014-12-01 | Hon Hai Prec Ind Co Ltd | Optical fiber coupling connector and electronic device |
| CN113237850A (en) * | 2021-04-29 | 2021-08-10 | 广州永士达医疗科技有限责任公司 | Optical fiber collimator for OCT (optical coherence tomography), manufacturing method and OCT equipment |
-
2002
- 2002-06-28 CN CN02265195U patent/CN2552018Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI463202B (en) * | 2009-12-17 | 2014-12-01 | Hon Hai Prec Ind Co Ltd | Optical fiber coupling connector and electronic device |
| CN113237850A (en) * | 2021-04-29 | 2021-08-10 | 广州永士达医疗科技有限责任公司 | Optical fiber collimator for OCT (optical coherence tomography), manufacturing method and OCT equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |