CN109407302A - A kind of Polarization Controller - Google Patents
A kind of Polarization Controller Download PDFInfo
- Publication number
- CN109407302A CN109407302A CN201811394901.8A CN201811394901A CN109407302A CN 109407302 A CN109407302 A CN 109407302A CN 201811394901 A CN201811394901 A CN 201811394901A CN 109407302 A CN109407302 A CN 109407302A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- fixed plate
- ring
- polarization controller
- fiber fixed
- 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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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
Abstract
The invention discloses a kind of Polarization Controllers, characterized in that including optical fiber fixed cell and the middle part being attached thereto single mode optical fiber annular in shape.The knots modification of this Polarization Controller and conventional polarization controller than can get bigger polarization state in the case where rotating equal angular, this Polarization Controller structure is simpler, structural volume is small, can more rapidly adjust polarization direction in polarization optical path, and usage range is wide.
Description
Technical field
The present invention relates to communication and sensory field, in particular to linearly polarized light transmission and test, specifically a kind of polarization control
Device processed.
Background technique
Traditional mechanical Polarization Controller of ring-type, annular fiber can only be straight to surround the optical fiber of " ring " in the course of work
Line part is axis rotation.The shortcomings that this ring-type mechanical Polarization Controller is to need to control three annular fibers, equipment volume
Larger, control program is more complex, and since variable is more, realizes that linear controllable variations difficulty is big.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, and provide a kind of Polarization Controller.This Polarization Controller
Knots modification with conventional polarization controller than can get bigger polarization state in the case where rotating equal angular, this Polarization Controller structure
More simply, structural volume is small, can more rapidly adjust polarization direction in polarization optical path, and usage range is wide.
Realizing the technical solution of the object of the invention is:
A kind of Polarization Controller, it is unlike the prior art, annular in shape including optical fiber fixed cell and the middle part being attached thereto
Single mode optical fiber.
The optical fiber fixed cell includes optical fiber fixed plate, and the edge part of optical fiber fixed plate is equipped with to be linked as with optical fiber fixed plate
The cylindrical adjustment axis of one, the outside of adjustment axis is cased with damping rubber ring, is cased with the adjustment axis of damping rubber ring and sets
Standby casing part connects, and the setting of damping rubber ring is in order to provide damping appropriate to adjustment axis rotation process, and when stagnating
It is remained stationary behind a certain position.
The both ends of the single mode optical fiber are linearly, and middle section is cyclic annular in individual pen ring-type or equidirectional multi-turn, individual pen
The diameter of ring or equidirectional multi-turn ring is not less than the minimum bend diameter of the single mode optical fiber, individual pen ring or equidirectional multi-turn ring
It is fixed in optical fiber fixed plate, optical fiber fixed plate drives single mode optical fiber planar to cross the linearly optical fiber in both ends around it and hands over
The axial direction that meeting point divides annular fiber equally is rotated.
The optical fiber fixed plate is equipped with the positioning protrusion of one group of movable adjusting, and positioning protrusion is in optical fiber fixed plate
Position is according to the individual pen ring of single mode optical fiber or the adjustable section of equidirectional multi-turn ring.
The quantity of the positioning protrusion is at least three.
Laser signal enters from one end of single mode optical fiber, and exports from the single mode optical fiber other end, turns to adjustment axis application
Kinetic moment makes adjustment axis that optical fiber fixed plate and single mode optical fiber be driven to rotate together, and the laser signal in single mode optical fiber is inclined at this time
Polarization state changes, and is the change of polarization angle to line polarisation.
Relative to traditional mechanical Polarization Controller of ring-type, the technical program is realized same by new rotating manner
The structure more simplified of smaller volume under sample polarization state changes, while obtaining in the case where rotating equal angular the change of bigger polarization state
Amount, is advantageous to be integrated in the equipment of small space.
This Polarization Controller and conventional polarization controller are simpler than structure, structural volume is small, can more rapidly adjust partially
Polarization direction in optical path of shaking, usage range are wide.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in embodiment；
Fig. 2 is single mode optical fiber rotation direction schematic diagram in embodiment.
In figure, 1. optical fiber fixed cell, 2. single mode optical fiber, 3. optical fiber fixed plate, 4. adjustment axis, 5. damping rubber ring 6.
7. positioning protrusion of device housings part.
Specific embodiment
The contents of the present invention are further elaborated with reference to the accompanying drawings and examples, but are not to limit of the invention
It is fixed.
Referring to Fig.1, the optical fiber fixed cell 1 includes optical fiber fixed plate 3, and the edge part of optical fiber fixed plate 3 is equipped with and light
The cylindrical adjustment axis 4 that fine fixed plate 3 is linked together, the outside of adjustment axis 4 are cased with damping rubber ring 5, are cased with damping rubber
The adjustment axis 4 of rubber ring 5 is connect with device housings part 6, and the setting of damping rubber ring 5 is to mention to 4 rotation process of adjustment axis
It is remained stationary for damping appropriate, and after being stuck in a certain position.
The both ends of the single mode optical fiber 2 are linearly, and middle section is cyclic annular in individual pen ring-type or equidirectional multi-turn, individual pen
The diameter of ring or equidirectional multi-turn ring is not less than the minimum bend diameter of the single mode optical fiber 2, individual pen ring or equidirectional multi-turn
Ring is fixed in optical fiber fixed plate 3, optical fiber fixed plate 3 drive single mode optical fiber 2 around it planar to cross both ends linearly
The axial direction that optical fiber joint divides annular fiber equally is rotated.
The optical fiber fixed plate 3 is equipped with the positioning protrusion 7 of one group of movable adjusting, and positioning protrusion 7 is in optical fiber fixed plate 3
On position according to the individual pen ring of single mode optical fiber 2 or the adjustable section of equidirectional multi-turn ring.
The quantity of the positioning protrusion 7 is at least three, and this example is 3.
Laser signal enters from one end of single mode optical fiber 2, and exports from 2 other end of single mode optical fiber, applies one to adjustment axis 4
Fixed rotating torque makes adjustment axis 4 that optical fiber fixed plate 3 and single mode optical fiber 2 be driven to rotate together, at this time swashing in single mode optical fiber 2
The polarization state of optical signal changes, and is the change of polarization angle to line polarisation.
Claims (5)
1. a kind of Polarization Controller, characterized in that including optical fiber fixed cell and the middle part being attached thereto single-mode optics annular in shape
It is fine.
2. Polarization Controller according to claim 1, characterized in that the optical fiber fixed cell includes optical fiber fixed plate,
The edge part of optical fiber fixed plate is equipped with the cylindrical adjustment axis being linked together with optical fiber fixed plate, and the outside of adjustment axis is cased with
Damping rubber ring, the adjustment axis for being cased with damping rubber ring are connect with device housings part.
3. Polarization Controller according to claim 1, characterized in that the both ends of the single mode optical fiber are linearly, intermediate
Part is cyclic annular in individual pen ring-type or equidirectional multi-turn, and the diameter of individual pen ring or equidirectional multi-turn ring is not less than the single mode optical fiber
Minimum bend diameter, individual pen ring or equidirectional multi-turn ring be fixed in optical fiber fixed plate, and optical fiber fixed plate drives single-mode optics
Fibre is planar crossed the axial direction that the linearly optical fiber joint in both ends divides annular fiber equally around it and is rotated.
4. Polarization Controller according to claim 1, characterized in that the optical fiber fixed plate is equipped with one group of movable tune
The positioning protrusion of section, individual pen ring or equidirectional multi-turn ring of position of the positioning protrusion in optical fiber fixed plate according to single mode optical fiber
Adjustable section.
5. Polarization Controller according to claim 4, characterized in that the quantity of the positioning protrusion is at least three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394901.8A CN109407302B (en) | 2018-11-22 | 2018-11-22 | Polarization controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394901.8A CN109407302B (en) | 2018-11-22 | 2018-11-22 | Polarization controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109407302A true CN109407302A (en) | 2019-03-01 |
| CN109407302B CN109407302B (en) | 2021-03-16 |
Family
ID=65474615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394901.8A Active CN109407302B (en) | 2018-11-22 | 2018-11-22 | Polarization controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109407302B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389090A (en) * | 1980-09-04 | 1983-06-21 | The Board Of Trustees Of Leland Stanford Jr. Univ. | Fiber optic polarization controller |
| CN102944930A (en) * | 2012-11-08 | 2013-02-27 | 电子科技大学 | Adjusting device of optical fiber polarization controller |
| CN203688909U (en) * | 2014-01-10 | 2014-07-02 | 江苏昂德光电科技有限公司 | Fiber ring rotation polarization controller |
| CN104155754A (en) * | 2014-09-05 | 2014-11-19 | 天津迈达医学科技股份有限公司 | Electrical optical fiber polarization controller |
| CN104423076A (en) * | 2013-08-28 | 2015-03-18 | 安徽量子通信技术有限公司 | Polarization controller |
| CN207851406U (en) * | 2018-02-09 | 2018-09-11 | 无锡源清瑞光激光科技有限公司 | Simple fibre-optic polarization adjuster |
-
2018
- 2018-11-22 CN CN201811394901.8A patent/CN109407302B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389090A (en) * | 1980-09-04 | 1983-06-21 | The Board Of Trustees Of Leland Stanford Jr. Univ. | Fiber optic polarization controller |
| CN102944930A (en) * | 2012-11-08 | 2013-02-27 | 电子科技大学 | Adjusting device of optical fiber polarization controller |
| CN104423076A (en) * | 2013-08-28 | 2015-03-18 | 安徽量子通信技术有限公司 | Polarization controller |
| CN203688909U (en) * | 2014-01-10 | 2014-07-02 | 江苏昂德光电科技有限公司 | Fiber ring rotation polarization controller |
| CN104155754A (en) * | 2014-09-05 | 2014-11-19 | 天津迈达医学科技股份有限公司 | Electrical optical fiber polarization controller |
| CN207851406U (en) * | 2018-02-09 | 2018-09-11 | 无锡源清瑞光激光科技有限公司 | Simple fibre-optic polarization adjuster |
Non-Patent Citations (2)
| Title |
|---|
| 李景镇: "《光学手册 上》", 31 July 2010 * |
| 王友钊、黄静: "《光纤传感技术》", 31 March 2015 * |
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| Publication number | Publication date |
|---|---|
| CN109407302B (en) | 2021-03-16 |
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