CN106443890A - Efficient spatial light to single-mode optical fiber coupling system based on non-spherical-surface shaper - Google Patents
Efficient spatial light to single-mode optical fiber coupling system based on non-spherical-surface shaper Download PDFInfo
- Publication number
- CN106443890A CN106443890A CN201611136061.6A CN201611136061A CN106443890A CN 106443890 A CN106443890 A CN 106443890A CN 201611136061 A CN201611136061 A CN 201611136061A CN 106443890 A CN106443890 A CN 106443890A
- Authority
- CN
- China
- Prior art keywords
- aspheric surface
- optical fiber
- mode optical
- spherical
- light
- 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.)
- Pending
Links
Classifications
-
- 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
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention aims at providing an efficient spatial light to single-mode optical fiber coupling system based on a non-spherical-surface shaper, aiming at solving the problems of a space laser communication system that signal light focusing light spot and light intensity distribution and single-mode optical fiber mold field distribution are inconsistent, and thus the maximum coupling efficiency of a spatial light to single-mode optical fiber only can reach 81%. According to the technical scheme provided by the invention, the efficient spatial light to single-mode optical fiber coupling system comprises a first non-spherical-surface shaping lens 1, a second non-spherical-surface shaping lens 2, a coupling lens 3 and a single-mode optical fiber 4, wherein the first non-spherical-surface shaping lens 1 and the second non-spherical-surface shaping lens 2 are light beam shaping units and can be used for shaping parallel light beam light intensity into Gaussian distribution from flat-topped distribution. The efficient spatial light to single-mode optical fiber coupling system based on the non-spherical-surface shaper has the beneficial effect of improving the maximum coupling efficiency of the spatial light to single-mode optical fiber.
Description
Technical field
The present invention relates to a kind of efficient space light based on aspheric surface reshaper, to Single-Mode Fiber Coupling system, belongs to space
Technical field of laser communication.
Background technology
Laser space communication refers to directly carry out data, language as carrier wave at space (land or the outer space) by the use of laser beam
Sound, a kind of technology of image information transmission, have that narrow transmitting beam, information capacity be big, discharger small volume, low in energy consumption, protect
Close property is strong, electromagnetism interference, without demand frequency using license, many advantages, such as human body is no affected.Lead to for improving satellite light
Letter system traffic rate and detectivity, are futures using the ripe image intensifer of ground fiber optic communication and wavelength-division multiplex technique
The important directions of free-space optical communication system design.In such systems, space optical coupling to single-mode fiber is primary solution
Problem certainly.After thousand of km transmission, the flashlight that communication receiver receives is that light intensity is equal to laser space communication flashlight
The plane wave of even distribution, because flashlight focusing light field is inconsistent with single-mode fiber mode distributions, leads to ideally space
Light is only 81% to single-mode fiber maximum coupling efficiency.There are no patent at present to be related to improve spatial light-single-mode fiber
The System and method for of big coupling efficiency, only U.S. O.Guyon propose using phase time-varying amplitude apodization technology to improve telescope with
Coupling efficiency (the list of references of single-mode fiber：O.Guyon.Phase-induced amplitude apodization of
telescope pupils for extrasolar terrestrial planet imaging[J].Astronomy&
Astrophysics, 2003,404,379-387), but there is reflecting mirror processing, debug difficulty, system versatility not in this method
High problem.
Therefore, how coupled system processing, resetting difficulty, and coupled system versatility be good, coupling efficiency is high not increasing
Become the study hotspot in this field, the present invention is then a kind of efficient space light based on aspheric surface reshaper to Single-Mode Fiber Coupling
System.
Content of the invention
It is an object of the invention to provide a kind of efficient space light based on aspheric surface reshaper is to Single-Mode Fiber Coupling system
System, solution laser space communication system is inconsistent with single-mode fiber mode distributions due to flashlight focal beam spot light distribution, leads
Uniform space light is only capable of reaching 81% problem to single-mode fiber maximum coupling efficiency.
The technical solution adopted in the present invention be including the first aspheric surface shaping mirror (1), the second aspheric surface shaping mirror (2),
Coupling mirror (3), single-mode fiber (4)；Flashlight through free space transmission sequentially pass through the first aspheric surface shaping mirror (1), second
It is coupled in single-mode fiber (4) after aspheric surface shaping mirror (2), coupling mirror (3).Wherein：
1. the first aspheric surface shaping mirror (1) described in is convex aspheric surface, and the second aspheric surface shaping mirror (2) is recessed aspheric surface；
2. the collimated light beam of optical power detection is through the first aspheric surface shaping mirror (1) and the second aspheric surface shaping mirror (2)
It is still collimated light beam afterwards, but its light distribution is Gauss distribution；
3. the fibre core mode distributions of single-mode fiber (4) are Gauss distribution；
Beneficial effect
The invention has the beneficial effects as follows the spatial light that improve is to single-mode fiber maximum coupling efficiency
Brief description
Fig. 1 is a kind of efficient space light based on aspheric surface reshaper to Single-Mode Fiber Coupling system.This figure is also explanation
Book extract accompanying drawing.Wherein, 1 be the first aspheric surface shaping mirror, 2 be the second aspheric surface shaping mirror, 3 be coupling mirror, 4 be single-mode optics
Fine；
Fig. 2 is aspheric surface reshaper operating diagram.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, present system is including the first aspheric surface shaping mirror 1, the second aspheric surface shaping mirror 2, coupling
Mirror 3, single-mode fiber 4；Flashlight through free space transmission sequentially passes through the first aspheric surface shaping mirror 1, the second aspheric surface shaping
It is coupled into after mirror 2, coupling mirror 3 in single-mode fiber 4, wherein：
1. the first aspheric surface shaping mirror 1 bore is 12mm, and material is BK7, by the first surface on the light direction of propagation is
Plane, second surface is convex surface, is aspheric surface, asphericity coefficients a2=0.02175, a4=-0.00001262, a6=-
0.000001208, a8=4.866E-008, a10=-7.821E-10；Second surface summit is fixed away from the second aspheric surface first surface
Point distance is 40mm；
2. the second aspheric surface shaping mirror 2 bore is 4mm, and material is BK7, is recessed by the first surface on the light direction of propagation
Face, is aspheric surface, asphericity coefficients a2=0.1858, a4=-0.06069, a6=0.02407, a8=-0.01027, a10=
0.00417, a12=-0.001311, a14=0.0002577, a16=-0.00002282, vertex curvature radius are
6.39574mm；Second surface is plane, and its radius of curvature is infinity, and second surface summit is away from coupling mirror first surface summit
Distance is 10mm；
3. coupling mirror 3 bore is 3mm, and material is BK7, is convex surface by the first surface on the light direction of propagation, its curvature
Radius is 6.39574mm, and second surface is convex surface, and radius of curvature is 34.531mm；Second surface summit is away from single-mode fiber end face
Distance is 9.575mm；
Implement in this way, the flat top beam of achievable beam size 12mm and the efficient coupling of single-mode fiber, in theory
Maximum coupling efficiency can reach 100%.
Claims (3)
1. it is an object of the invention to provide a kind of efficient space light based on aspheric surface reshaper is to Single-Mode Fiber Coupling system,
It is characterized in that：Including the first aspheric surface shaping mirror (1), the second aspheric surface shaping mirror (2), coupling mirror (3), single-mode fiber (4)；
Flashlight through free space transmission sequentially passes through the first aspheric surface shaping mirror (1), the second aspheric surface shaping mirror (2), coupling mirror
(3) it is coupled into after in single-mode fiber (4)；
2. a kind of efficient space light based on aspheric surface reshaper according to patent requirements 1 is to Single-Mode Fiber Coupling system,
It is characterized in that：The first described aspheric surface shaping mirror (1) is convex aspheric surface, and the second aspheric surface shaping mirror (2) is recessed aspheric surface,
The collimated light beam of optical power detection is still parallel through the first aspheric surface shaping mirror (1) after the second aspheric surface shaping mirror (2)
Light beam, but its light distribution is Gauss distribution；
3. a kind of efficient space light based on aspheric surface reshaper according to patent requirements 1 is to Single-Mode Fiber Coupling system,
It is characterized in that：Described single-mode fiber (4) fibre core mode distributions are Gauss distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136061.6A CN106443890A (en) | 2016-12-12 | 2016-12-12 | Efficient spatial light to single-mode optical fiber coupling system based on non-spherical-surface shaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136061.6A CN106443890A (en) | 2016-12-12 | 2016-12-12 | Efficient spatial light to single-mode optical fiber coupling system based on non-spherical-surface shaper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106443890A true CN106443890A (en) | 2017-02-22 |
Family
ID=58217801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611136061.6A Pending CN106443890A (en) | 2016-12-12 | 2016-12-12 | Efficient spatial light to single-mode optical fiber coupling system based on non-spherical-surface shaper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106443890A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061971A (en) * | 2017-12-29 | 2018-05-22 | 江苏中科大港激光科技有限公司 | A kind of beam shaping system for the anti-base material damage of laser cleaning system |
| WO2020238278A1 (en) * | 2019-05-24 | 2020-12-03 | 华为技术有限公司 | Space optical coupling apparatus |
| CN115327685A (en) * | 2022-08-30 | 2022-11-11 | 山东理工大学 | A single aspherical lens for TO encapsulation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1540382A (en) * | 2003-06-24 | 2004-10-27 | S・朱塔莫利亚 | Fiber-coupled laser diode having high coupling-efficiency and low feedbck noise |
| CN102435986A (en) * | 2011-09-16 | 2012-05-02 | 北方民族大学 | Single-mode fiber automatic coupling system of all-fiber laser radar |
| CN102597745A (en) * | 2009-11-12 | 2012-07-18 | 通用电气公司 | Optical sensor system based on attenuated total reflection and method of sensing |
| CN105607276A (en) * | 2016-01-21 | 2016-05-25 | 电子科技大学 | Novel ideal aspheric collimation system of semiconductor laser |
| CN205581428U (en) * | 2016-04-28 | 2016-09-14 | 武汉大学 | System of restrainting is expanded in gaussian beam plastic |
-
2016
- 2016-12-12 CN CN201611136061.6A patent/CN106443890A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1540382A (en) * | 2003-06-24 | 2004-10-27 | S・朱塔莫利亚 | Fiber-coupled laser diode having high coupling-efficiency and low feedbck noise |
| CN102597745A (en) * | 2009-11-12 | 2012-07-18 | 通用电气公司 | Optical sensor system based on attenuated total reflection and method of sensing |
| CN102435986A (en) * | 2011-09-16 | 2012-05-02 | 北方民族大学 | Single-mode fiber automatic coupling system of all-fiber laser radar |
| CN105607276A (en) * | 2016-01-21 | 2016-05-25 | 电子科技大学 | Novel ideal aspheric collimation system of semiconductor laser |
| CN205581428U (en) * | 2016-04-28 | 2016-09-14 | 武汉大学 | System of restrainting is expanded in gaussian beam plastic |
Non-Patent Citations (4)
| Title |
|---|
| 李仕春，华灯鑫，宋跃辉，田小雨: "基于非球面透镜的空间光场光纤耦合系统研究", 《光子学报》 * |
| 罗文: "基于自适应光纤耦合器的单模光纤耦合技术研究", 《中国科学院大学硕士学位论文》 * |
| 赵蕊: "变光束质量激光束自适应光纤耦合技术研究", 《长春理工大学硕士学位论文》 * |
| 邓科: "空间光-光纤耦合技术研究", 《电子科技大学硕士学位论文》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061971A (en) * | 2017-12-29 | 2018-05-22 | 江苏中科大港激光科技有限公司 | A kind of beam shaping system for the anti-base material damage of laser cleaning system |
| WO2020238278A1 (en) * | 2019-05-24 | 2020-12-03 | 华为技术有限公司 | Space optical coupling apparatus |
| US11880068B2 (en) | 2019-05-24 | 2024-01-23 | Huawei Technologies Co., Ltd. | Space optical coupling apparatus |
| CN115327685A (en) * | 2022-08-30 | 2022-11-11 | 山东理工大学 | A single aspherical lens for TO encapsulation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106526820A (en) | High emission efficiency space laser communication antenna based on aspheric shaping prism | |
| CN107367795B (en) | The fiber coupling device of perfect optical eddy orbital angular momentum multiplex/demultiplex | |
| CN106443890A (en) | Efficient spatial light to single-mode optical fiber coupling system based on non-spherical-surface shaper | |
| CN104181691A (en) | Folding type scanning optical system based on MEMS micro mirror | |
| CN104597436A (en) | Spectrum light splitting device applied to imaging laser radar | |
| US20080240718A1 (en) | Free-Space Communications System and Method | |
| CN107508140B (en) | A kind of broadband couple device optical microcavity system and its coupling process that on piece is integrated | |
| US20110293215A1 (en) | Low loss laser transmission through telescopes with mirror obscurations | |
| CN104991258A (en) | Infrared laser light uniformizing illumination detecting system | |
| CN104142498A (en) | Novel beam expander of coherent wind lidar | |
| Zhang et al. | Coupling efficiency between ball lens capped laser diode chip and single mode fiber | |
| CN103246063B (en) | A kind of adjustable laser beam expander | |
| CN110488246A (en) | A kind of big visual field receiving system of two dimension MEMS scanning laser radar | |
| CN103064190A (en) | Flaky light beam smoothing and reshaping device | |
| Lu et al. | Coupling efficiency of a laser diode to a single-mode fiber via a microlens on the fiber tip | |
| CN102436066B (en) | Method and device for adjusting internal/external diameters of hollow beams | |
| CN105393472B (en) | The method and apparatus that optics energy is extracted from light beam | |
| CN207081864U (en) | A kind of large-numerical aperture is used for the optical system that fibre bundle couples with detector | |
| CN104516063B (en) | Device for increasing output beam spatial divergence angle and homogenizing light spot and method for manufacturing same | |
| CN105676423A (en) | Lens assembly and diffraction-free light beam obtaining method | |
| CN105424187A (en) | Refrigeration-type long-wave infrared imaging spectrometer based on Dyson structure | |
| CN202916459U (en) | Multi-fiber collimator | |
| CN103852163A (en) | Miniature beam splitting system suitable for miniature imaging spectrometer | |
| CN203217180U (en) | 1064nm / 532nm dual-band beam expander | |
| CN2810046Y (en) | A Free Space Optics (FSO) communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |