CN105572817A - Abnormal end surface optical fiber coupler used for integration - Google Patents
Abnormal end surface optical fiber coupler used for integration Download PDFInfo
- Publication number
- CN105572817A CN105572817A CN201510989509.8A CN201510989509A CN105572817A CN 105572817 A CN105572817 A CN 105572817A CN 201510989509 A CN201510989509 A CN 201510989509A CN 105572817 A CN105572817 A CN 105572817A
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- China
- Prior art keywords
- optical fiber
- special
- fiber
- cylindrical lens
- integrated
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Classifications
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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
- G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
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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
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
Abstract
The invention relates to an abnormal end surface optical fiber coupler used for integration. The abnormal end surface optical fiber coupler comprises an integrated chip board, an optical fiber fixing plate, and a substrate, the optical fiber fixing plate is provided with an optical fiber V-shaped groove for containing an optical fiber, the integrated chip board is provided with an integrated chip V-shaped groove, the integrated chip board comprises a semiconductor laser chip, a bare optical fiber semi-cylindrical lens, and a special optical fiber, a plane end of the bare optical fiber semi-cylindrical lens and an incidence end surface of the special optical fiber are bonded together via optical cement, the integrated chip V-shaped groove is matched with the surface with special processing of the special optical fiber, the optical fiber V-shaped groove is matched with the normal surface of the special optical fiber, and the semiconductor laser chip, the bare optical fiber semi-cylindrical lens, and the special optical fiber are positioned in the same optical axis. The abnormal end surface optical fiber coupler is advantageous in that assemblies of the semiconductor laser chip, the bare optical fiber semi-cylindrical lens, and the special optical fiber are employed, the size is small, integration can be realized via assembling, the coupling efficiency is improved in multiple aspects, the structure is simple, the obtaining is easy, and the price is low.
Description
Technical field
The present invention relates to optical communication field, be specifically related to a kind of for integrated special-shaped end face fiber coupler.
Background technology
In optical communication or relevant field, the scatter light flux sent from light source all conducts to optical fiber by lens.And to be used for the incidence end of the ordinary optic fibre carrying out optical transport be in the past generally plane.Although the cost of plane is rather cheap, but owing to limitting by its characteristic, this incidence end be the optical fiber of plane cannot realize high coupling efficiency complete the optical coupled (be generally 20% ~ 75%) of light source to optical fiber, because it is very little that semiconductor laser chip can do, its spot size and the size of plane optical fiber inconsistent, make to produce model field unbalance, greatly affect coupling efficiency.So in present stage, special fiber is usually used to as high coupled fiber.
On the other hand, because the refringence of optical fiber and covering is less, sometimes cannot transmit in a fiber because light beam enters the condition of the satisfied total reflection of incident angle size of optical fiber, coupling efficiency is low.
Summary of the invention
The object of the invention is for deficiency of the prior art, there is provided a kind of for integrated special-shaped end face fiber coupler, can realize from semiconductor laser chip to the optical coupled of special-shaped end face fiber coupler with low-loss, and coupling efficiency is high, cost is low, handling ease, volume is little is easy to integrated.
For achieving the above object, the invention discloses following technical scheme:
For an integrated special-shaped end face fiber coupler, comprise integrated chip plate, optical fiber fixed head and substrate, three is fixed together by ultraviolet glue:
Optical fiber fixed head is provided with the optical fiber V shape groove of receiving optical fiber, integrated chip plate is provided with integrated chip V-shaped groove, and the spacing dimension of optical fiber V shape groove is identical with the spacing dimension of integrated chip V-shaped groove;
Integrated chip plate comprises semiconductor laser chip, bare fibre semi-cylindrical lens and special fiber, the planar ends of bare fibre semi-cylindrical lens and the incident end face of special fiber are used up glued together; The incidence end of special fiber is half-cone, and integrated chip V-shaped groove has certain angle of inclination, matches, and be completely fixed together with coupling glue with the surface of special fiber through special processing;
The normal surface of optical fiber V shape groove and special fiber matches, and is completely fixed together with coupling glue;
Semiconductor laser chip, bare fibre semi-cylindrical lens and special fiber are on same optical axis.
Further, described special fiber is by one end of ordinary optic fibre after fusion draw is tapered, gets suitable distance cut into half-cone and carry out grinding again and form at its tip.
Further, described bare fibre semi-cylindrical lens removes the covering only lens pillar made of remaining core segment by optical fiber, then cut into semi-cylindrical lens.
Further, described semiconductor laser chip distance bare fibre semi-cylindrical lens 10-40 μm.
Disclosed by the invention a kind of for integrated special-shaped end face fiber coupler, there is following beneficial effect:
1, the present invention adopt assembly be semiconductor laser chip, bare fibre semi-cylindrical lens and special fiber, these volume is all very little, can assemble realize integrated.
2, the present invention adopts bare fibre semi-cylindrical lens and special fiber, many-sided raising coupling efficiency, makes optical coupling efficiency can up to 95%.
3, structure of the present invention is simple, easily obtains, cheap.
Accompanying drawing explanation
Fig. 1 is a kind of schematic top plan view for integrated special-shaped end face fiber coupler of the present invention;
Fig. 2 is that schematic diagram is looked on an a kind of left side for integrated special-shaped end face fiber coupler of the present invention;
Fig. 3 is a kind of cross-sectional manufactured for the special fiber in integrated special-shaped end face fiber coupler in the present invention;
Fig. 4 is the schematic three dimensional views of a kind of special-shaped end face fiber coupler for integrated special-shaped end face fiber coupler in the present invention;
Wherein:
1-substrate, 2-integrated chip plate, 3-optical fiber fixed head, 4-semiconductor laser chip, 5-bare fibre semi-cylindrical lens, 6-integrated chip V-shaped groove, 7-special fiber, 8-optical fiber V shape groove, 9-optical axis, 10-ultraviolet glue, 11-mates glue, 12-optical cement
Embodiment
Below in conjunction with embodiment, also with reference to accompanying drawing, the invention will be further described.
Accompanying drawing 1 to be a kind of schematic top plan view for integrated special-shaped end face fiber coupler of the present invention and accompanying drawing 2 be an a kind of left side for integrated special-shaped end face fiber coupler of the present invention is depending on schematic diagram: the light beam sent from semiconductor laser chip 4 is coupled to the incidence end of special fiber 7 through bare fibre semi-cylindrical lens 5, then transmits through special fiber 7.
The present invention is a kind of for integrated special-shaped end face fiber coupler, and comprise integrated chip plate 2, optical fiber fixed head 3 and substrate 1, three is fixed together by ultraviolet glue 10:
Optical fiber fixed head 3 is provided with the optical fiber V shape groove 8 of receiving optical fiber, integrated chip plate 2 is provided with integrated chip V-shaped groove 6, and the spacing dimension of optical fiber V shape groove 8 is identical with the spacing dimension of integrated chip V-shaped groove 6; Integrated chip plate 2 comprises semiconductor laser chip 4, bare fibre semi-cylindrical lens 5 and special fiber 7, the planar ends of bare fibre semi-cylindrical lens 5 and the incident end face optical cement 12 of special fiber 7 stick together, as shown in Figure 4; The incidence end of special fiber 7 is half-cone, and integrated chip V-shaped groove 6 has certain angle of inclination, matches with the surface of special fiber 7 through special processing, and is completely fixed together with coupling glue 11; Optical fiber V shape groove 8 matches with the normal surface of special fiber 7, and is completely fixed together with coupling glue 11; Semiconductor laser chip 4, bare fibre semi-cylindrical lens 5 and special fiber 7 are on same optical axis.
See Fig. 3.In the present embodiment, special fiber 7 is by one end of ordinary optic fibre after fusion draw is tapered, gets suitable distance cut into half-cone and carry out grinding again and form at its tip.
In the present embodiment, bare fibre semi-cylindrical lens 5 removes the covering only lens pillar made of remaining core segment by optical fiber, then cut into semi-cylindrical lens.
In the present embodiment, semiconductor laser chip 4 is apart from bare fibre semi-cylindrical lens 10-40 μm.
In the present invention, semiconductor laser is usually used to as light source, and when the assembly of optical fiber as coupling mechanism, the raising of its coupling efficiency is particularly important.
Bare fibre semi-cylindrical lens 5 is easier than circle lens to be obtained, and cost is low, the planar ends of bare fibre semi-cylindrical lens 5 can stick together with the good optical cement of the incidence end of special fiber 7, what semiconductor laser chip 4 sent by bare fibre semi-cylindrical lens 5 couples light on special fiber 7, shorten the distance between semiconductor laser chip 4, bare fibre semi-cylindrical lens 5 and special fiber 7, thus weaken from semiconductor laser chip 4 launch light beam weaken, improve coupling efficiency.
The half-cone size α of the incidence end of special fiber 7 is convenient to change, and the spot size easily realizing the fiber size of half-cone and semiconductor laser chip 4 is in the same size, greatly can improve coupling efficiency.The optical fiber used in the present invention is half-cone, also through grinding, the optical fiber of gained make laser beam enter optical fiber vertical optical axis or be parallel to optical axis direction on can realize meeting total reflection condition ranges of incidence angles increase, thus substantially increase coupling efficiency.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art; under the premise of not departing from the present invention; the some improvement can also made the present invention and supplement, these improve and supplement, also should be considered as protection scope of the present invention.
Claims (4)
1. for an integrated special-shaped end face fiber coupler, it is characterized in that, comprise integrated chip plate, optical fiber fixed head and substrate, three is fixed together by ultraviolet glue:
Optical fiber fixed head is provided with the optical fiber V shape groove of receiving optical fiber, integrated chip plate is provided with integrated chip V-shaped groove, and the spacing dimension of optical fiber V shape groove is identical with the spacing dimension of integrated chip V-shaped groove;
Integrated chip plate comprises semiconductor laser chip, bare fibre semi-cylindrical lens and special fiber, the planar ends of bare fibre semi-cylindrical lens and the incident end face of special fiber are used up glued together; The incidence end of special fiber is half-cone, and integrated chip V-shaped groove has certain angle of inclination, matches, and be completely fixed together with coupling glue with the surface of special fiber through special processing;
The normal surface of optical fiber V shape groove and special fiber matches, and is completely fixed together with coupling glue;
Semiconductor laser chip, bare fibre semi-cylindrical lens and special fiber are on same optical axis.
2. according to claim 1 a kind of for integrated special-shaped end face fiber coupler, it is characterized in that, described special fiber is by one end of ordinary optic fibre after fusion draw is tapered, gets suitable distance cut into half-cone and carry out grinding again and form at its tip.
3. according to claim 1ly a kind ofly to it is characterized in that for integrated special-shaped end face fiber coupler, described bare fibre semi-cylindrical lens removes the covering only lens pillar made of remaining core segment by optical fiber, then cut into semi-cylindrical lens.
4. according to claim 1ly a kind ofly to it is characterized in that for integrated special-shaped end face fiber coupler, described semiconductor laser chip distance bare fibre semi-cylindrical lens 10-40 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989509.8A CN105572817B (en) | 2015-12-24 | 2015-12-24 | It is a kind of to be used for integrated special-shaped end face fiber coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989509.8A CN105572817B (en) | 2015-12-24 | 2015-12-24 | It is a kind of to be used for integrated special-shaped end face fiber coupler |
Publications (2)
| Publication Number | Publication Date |
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| CN105572817A true CN105572817A (en) | 2016-05-11 |
| CN105572817B CN105572817B (en) | 2017-12-22 |
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| CN201510989509.8A Active CN105572817B (en) | 2015-12-24 | 2015-12-24 | It is a kind of to be used for integrated special-shaped end face fiber coupler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508545A (en) * | 2017-02-28 | 2018-09-07 | 新科实业有限公司 | The coupled structure and coupling process of optical device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10332989A (en) * | 1997-05-28 | 1998-12-18 | Kyocera Corp | Optical element module and its manufacture |
| CA2352253A1 (en) * | 1999-09-28 | 2001-04-05 | Sumitomo Electric Industries, Ltd. | Optical communications device |
| CN101986178A (en) * | 2009-07-28 | 2011-03-16 | Jds尤尼弗思公司 | Light emitting semiconductor device |
| JP2011059360A (en) * | 2009-09-10 | 2011-03-24 | Mitsumi Electric Co Ltd | Optical module and method of manufacturing the same |
-
2015
- 2015-12-24 CN CN201510989509.8A patent/CN105572817B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10332989A (en) * | 1997-05-28 | 1998-12-18 | Kyocera Corp | Optical element module and its manufacture |
| CA2352253A1 (en) * | 1999-09-28 | 2001-04-05 | Sumitomo Electric Industries, Ltd. | Optical communications device |
| CN101986178A (en) * | 2009-07-28 | 2011-03-16 | Jds尤尼弗思公司 | Light emitting semiconductor device |
| JP2011059360A (en) * | 2009-09-10 | 2011-03-24 | Mitsumi Electric Co Ltd | Optical module and method of manufacturing the same |
Non-Patent Citations (1)
| Title |
|---|
| 冯喆珺，曾小东，安毓英: "《半导体激光器与半锥形多模光纤耦合效率的分析》", 《西安电子科技大学学报（自然科学版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508545A (en) * | 2017-02-28 | 2018-09-07 | 新科实业有限公司 | The coupled structure and coupling process of optical device |
| CN108508545B (en) * | 2017-02-28 | 2021-06-01 | 新科实业有限公司 | Coupling structure and coupling method of optical device |
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| Publication number | Publication date |
|---|---|
| CN105572817B (en) | 2017-12-22 |
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