CN105891962A - Spherical-surface positioning optical fiber collimator - Google Patents
Spherical-surface positioning optical fiber collimator Download PDFInfo
- Publication number
- CN105891962A CN105891962A CN201510011367.8A CN201510011367A CN105891962A CN 105891962 A CN105891962 A CN 105891962A CN 201510011367 A CN201510011367 A CN 201510011367A CN 105891962 A CN105891962 A CN 105891962A
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- CN
- China
- Prior art keywords
- optical fiber
- lens
- capillary tube
- fiber collimator
- collimator
- 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.)
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- Optical Couplings Of Light Guides (AREA)
Abstract
An existing optical fiber collimator is formed by lapping a capillary tube with a lens, and the lapping method usually comprises the step of fixing a capillary tube and a cylindrical surface of a lens through an additional sleeve pipe. The invention provides a method for manufacturing an optical fiber collimator by directly fixing a lens on the end surface of a capillary tube through spherical-surface positioning. The disclosed spherical-surface positioning optical fiber collimator is characterized by comprising the capillary tube, an optical fiber, a curing layer and the lens, wherein the optical fiber is fixed inside the capillary tube, the end surface of the optical fiber and the end surface of the capillary tube can be processed into an identical concave spherical surface, the radius is the same as that of a joint surface of the lens, and the capillary tube and the lens are fixed through the curing layer. According to the spherical-surface positioning optical fiber collimator, the end surface of the optical fiber and the joint surface of the lens can be uncoated, light-transmitting glue is filled between the optical fiber and the lens, and a refractive index of the glue is between that of the optical fiber and lens materials. Therefore, the collimator has the advantages of simplified structure, simple assembly, reduced size and decreased cost.
Description
Technical field
The present invention relates to a kind of location at spherical surface optical fiber collimator, belong to fiber optic communication field.
Technical background
Existing optical fiber collimator, all overlaps capillary tube and lens to get up to be formed, and the mode of overlap joint is typically by one
Individual additional sleeve pipe fixes the face of cylinder of capillary tube and lens.
Innovation and creation content
Existing optical fiber collimator, all overlaps capillary tube and lens to get up to be formed, and the mode of overlap joint is typically by one
Individual additional sleeve pipe fixes the face of cylinder of capillary tube and lens.
The present invention proposes and a kind of by location at spherical surface, lens is directly anchored to the method that capillary tube end face is fabricated to collimator.
The specific scheme is that and include optical fiber, capillary tube, cured layer, lens.Capillary tube can be glass tubing or metal tube；Light
Fibre can be quartz or plastic material；Cured layer can be printing opacity glue, low-melting glass etc..Optical fiber is fixed on inside capillary tube,
Capillary tube end face is processed into concave ball surfaces, and its radius is identical with lens faying face, and fiber end face can add together with lensed endface
Work concavity sphere, capillary tube and lens are fixed by cured layer.The logical bright finish of fiber end face and lens can not plated film with protect
Hold naked, between optical fiber and lens in fill glue, the refractive index of glue is between optical fiber and lens material.The faying face of lens
Itself can be logical bright finish, it is also possible on faying face, one facet of processing is as logical bright finish, and fiber end face relative configuration.
Lens shape can be spherical, it is also possible to being processed into cross section is cydariform, reduces volume further.
So, collimator structure simplifies, and assembles simple, and volume reduces, and cost reduces.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of first embodiment of the invention
Fig. 2 is the schematic diagram of second embodiment of the invention
Detailed description of the invention
Below in conjunction with accompanying drawing further describe the present invention embodiment.
Embodiment one
Including optical fiber (1), capillary tube (2), cured layer (3), lens (4), optical fiber (1) is fixed on capillary tube (2)
In, capillary tube (2) is glass material, and the end of optical fiber (1) and capillary tube (2) is same concave spherical surface, lens (4)
For spherical, concave spherical surface radius is identical with lens (4) radius, and lens (4) faying face is machined with a facet and light
Fine (1) end face relative configuration, cured layer (3) is printing opacity glue, fixed capillary (2) and lens (4), lens (4)
Faying face and optical fiber (1) end face are all naked, are full of printing opacity glue between the two, and printing opacity glue refractive index is little more than optical fiber (1)
Refractive index in lens (4) material.
Embodiment two
Lens (4) cross section is cydariform, and other are identical with embodiment one.
Claims (10)
1. an optical fiber collimator, including optical fiber, capillary tube, cured layer, lens, it is characterised in that optical fiber is fixed on capillary
In pipe, capillary tube end face is concave ball surfaces, and its radius is identical with lens faying face, is filled with cured layer between lens and capillary tube,
Fixed capillary and lens.
2. a kind of optical fiber collimator as claimed in claim 1, it is characterised in that the faying face of lens has a facet,
It is oppositely disposed as logical bright finish and fiber end face.
3. a kind of optical fiber collimator as claimed in claim 1, it is characterised in that fiber end face and capillary tube end face are same
Concave ball surfaces.
4. optical fiber collimator as claimed in claim 1 a kind of, it is characterised in that cured layer is printing opacity glue, the end face of optical fiber and
The logical bright finish of lens is naked, is full of printing opacity glue between optical fiber and lens.
5. a kind of optical fiber collimator as claimed in claim 1, it is characterised in that cured layer is printing opacity glue, the refraction of printing opacity glue
Rate is between optical fiber and the refractive index of lens material.
6. a kind of optical fiber collimator as claimed in claim 1, it is characterised in that the refractive index of lens material is about 2.0.
7. a kind of optical fiber collimator as claimed in claim 1, it is characterised in that being shaped as of lens is spherical.
8. a kind of optical fiber collimator as claimed in claim 1, it is characterised in that the cross section of lens is cydariform.
9. a kind of optical fiber collimator as claimed in claim 1, it is characterised in that capillary material is glass.
10. a kind of optical fiber collimator as claimed in claim 1, it is characterised in that cured layer is low-melting glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011367.8A CN105891962A (en) | 2015-01-08 | 2015-01-08 | Spherical-surface positioning optical fiber collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011367.8A CN105891962A (en) | 2015-01-08 | 2015-01-08 | Spherical-surface positioning optical fiber collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105891962A true CN105891962A (en) | 2016-08-24 |
Family
ID=56998929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510011367.8A Pending CN105891962A (en) | 2015-01-08 | 2015-01-08 | Spherical-surface positioning optical fiber collimator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105891962A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378954A (en) * | 1979-01-18 | 1983-04-05 | Itt Industries, Inc. | Method of making optical fiber termination |
| JPS63149611A (en) * | 1986-12-15 | 1988-06-22 | Oki Electric Ind Co Ltd | Collimator |
| JPH04246617A (en) * | 1991-01-31 | 1992-09-02 | Fuji Elelctrochem Co Ltd | Optical fiber collimator |
| CN103246019A (en) * | 2013-05-23 | 2013-08-14 | 深圳市天阳谷科技发展有限公司 | Fiber collimator |
| CN204666865U (en) * | 2015-01-08 | 2015-09-23 | 上海伟钊光学科技股份有限公司 | Location at spherical surface optical fiber collimator |
-
2015
- 2015-01-08 CN CN201510011367.8A patent/CN105891962A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378954A (en) * | 1979-01-18 | 1983-04-05 | Itt Industries, Inc. | Method of making optical fiber termination |
| JPS63149611A (en) * | 1986-12-15 | 1988-06-22 | Oki Electric Ind Co Ltd | Collimator |
| JPH04246617A (en) * | 1991-01-31 | 1992-09-02 | Fuji Elelctrochem Co Ltd | Optical fiber collimator |
| CN103246019A (en) * | 2013-05-23 | 2013-08-14 | 深圳市天阳谷科技发展有限公司 | Fiber collimator |
| CN204666865U (en) * | 2015-01-08 | 2015-09-23 | 上海伟钊光学科技股份有限公司 | Location at spherical surface optical fiber collimator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |