CN104155754B - Electrical optical fiber polarization controller - Google Patents
Electrical optical fiber polarization controller Download PDFInfo
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- CN104155754B CN104155754B CN201410452060.7A CN201410452060A CN104155754B CN 104155754 B CN104155754 B CN 104155754B CN 201410452060 A CN201410452060 A CN 201410452060A CN 104155754 B CN104155754 B CN 104155754B
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Abstract
The invention discloses an electrical optical fiber polarization controller which is characterized in that a first rotary shaft extending out of two sides is fixedly arranged on the bottom edge of a first optical fiber adjusting paddle; one end of the first rotary shaft is mounted on a first optical fiber adjusting paddle rotary shaft bracket, and the other end of the first rotary shaft is fixedly connected to one end of a first motor connector; the other end of the first motor connector is fixedly connected to an output shaft of a first step motor; the first optical fiber adjusting paddle rotary shaft bracket and the first step motor are fixed to a controller bottom plate respectively; an optical fiber guide groove is axially formed in the first rotary shaft; the two ends of a conducting optical fiber wound in the first optical fiber adjusting paddle are guided out of the first optical fiber adjusting paddle through the optical fiber guide groove respectively; one end of the conducting optical fiber is fixed through a first fixing mechanism, and the other end of the conducting optical fiber is fixed through a second fixing mechanism positioned in the first motor connector; the first fixing mechanism and the second fixing mechanism are fixed to the controller bottom plate respectively. According to the electrical optical fiber polarization controller, the polarization state mismatch in an optical coherence tomography (OCT) system can be adjusted timely according to the needs of a test.
Description
Technical field
The present invention relates to a kind of optical fiber polarization controller.More particularly to a kind of electronic optical fiber polarization controller.
Background technology
In order to simplify optical system structure, all employ optical fiber in many optical systems as the light-conductive media of light.As,
Mostly use optical fiber light-guiding pattern in optical coherence tomography (oct) system, significantly reduce the complicated journey of system
Degree, makes this technology be easier to commercialization.But due to single-mode fiber birefringent characteristic, optical fiber output polarization state can be with temperature, pressure
The various factors such as power and bending and change, cause from sample arm flashlight and from reference arm reference light between polarization state
Mismatch is thus affect sensitivity and the resolving power of system.Therefore, Polarization Control is coherent optical-fiber, communication system, and other phase
An extremely important problem in dry measure system.It is an effective technology solving this problem using optical fiber polarization controller
Means.In addition, in optical coherence tomography (oct) system, due to tested biological tissue (such as: ocular tissue) individual variation, surveying
Examination light also can cause polarization state to change when conducting inside tested tissue, and image quality also can be caused to decline.For ensureing to survey
The image quality of amount system, needs in detection process to adjust the polarization state of optical fiber for different tested tissue, with compensate because
The system polarization state imbalance that the individual variation of tested tissue causes, makes picture quality reach most preferably.Obviously, existing manual optical fiber
Polarization Controller cannot meet the demand of test system timely adjustment.
Content of the invention
The technical problem to be solved is to provide and a kind of can be directed to different tested tissue in detection process
The electronic optical fiber polarization controller of the polarization state of adjustment optical fiber.
The technical solution adopted in the present invention is: a kind of electronic optical fiber polarization controller, includes controller base plate and
One optical fiber adjusts oar, and the base that described first optical fiber adjusts oar is fixedly installed the first rotary shaft stretched out respectively, institute to both sides
The one end stating the first rotary shaft is arranged on the first optical fiber regulation oar rotary shaft rack, and the other end of described first rotary shaft is fixing even
It is connected on one end of the first motor connectors, the other end of described first motor connectors is fixedly connected on the first motor
On output shaft, wherein, the first described optical fiber adjusts oar rotary shaft rack and is fixed on described controller base plate, the described first step
Stepper motor is fixed on described controller base plate by motor support, and described first rotary shaft has been axially formed optical fiber and has drawn
Guide groove, the first optical fiber adjusts and is stamped on oar for preventing the optical fiber of the conduction optical fiber abjection being wrapped in the first optical fiber regulation oar from twining
Drum gland, described Optical Fiber Winding disk gland is fixed on the first optical fiber by housing pin and adjusts on oar, is wrapped in the first optical fiber
The first optical fiber regulation oar, described conduction light are drawn by described fiber guides groove respectively in the two ends adjusting the conduction optical fiber in oar
Fine one end passes through the first optical fiber to fix by the first fixed mechanism after adjusting oar rotary shaft rack, the other end of described conduction optical fiber
Fixed by the second fixed mechanism in the first motor connectors through after one end of the first motor connectors, described
One fixed mechanism and the second fixed mechanism are separately fixed on described controller base plate.
It is additionally provided with the second optical fiber and adjusts oar, one end that described second optical fiber adjusts the second rotary shaft on oar is installed in place
In the first fixed mechanism side and be fixed on controller base plate second optical fiber adjust oar rotary shaft rack on, described second optical fiber
The other end adjusting the second rotary shaft on oar is arranged on one end of the second motor connectors, described second motor connectors another
One end connects through motor support and is fixed on the output shaft of the second motor on controller base plate, from the first optical fiber
The conduction optical fiber adjusting oar extraction sequentially passes through the first optical fiber regulation oar rotary shaft rack, the first fixed mechanism and the regulation of the second optical fiber
After oar rotary shaft rack, the fiber guides groove being adjusted by being formed at the second optical fiber in second rotary shaft of oar one end enters the second light
Adjust fiber guides groove extraction the second light in the second rotary shaft of the oar other end through the second optical fiber after being wound around in fine regulation oar again
After fine regulation oar, solid by the 3rd fixed mechanism in the second motor connectors through after one end of the second motor connectors
Fixed, the 3rd described fixed mechanism is fixed on described controller base plate.
First motor connectors and the second motor connectors structure are identical, all include two connecting rods be arrangeding in parallel
And it is integrally formed in the first connection ring and second connection ring at two connecting rod two ends be arrangeding in parallel respectively, described first even
Connect and in the ring of ring, be inlaid with regulation oar rotary shaft terminal pad, in the ring of described second connection ring, be inlaid with motor shaft terminal pad, described regulation
The center of oar rotary shaft terminal pad has regulation oar rotary shaft fixing hole, and the center of described motor shaft terminal pad has motor shaft fixing hole.
First fixed mechanism, the second fixed mechanism and the 3rd fixed mechanism structure are identical, all include and are fixed on control
Optical fiber fixed support on device base plate processed, and it is arranged on described optical fiber fixed support upper end for fixing described conduction optical fiber
Optical fiber fixation clip.
A kind of electronic optical fiber polarization controller of the present invention, can realize to optical coherence tomography according to test needs
(oct) it is derived from the flashlight of sample arm and the timely adjustment of the polarization state mismatch of the reference light from reference arm in system.Exist
The polarization state of optical fiber can be adjusted for different tested tissue, to compensate because of the individual variation of tested tissue in detection process
The system polarization state imbalance causing, makes picture quality reach most preferably.
Brief description
Fig. 1 is the structural representation of the first embodiment of the present invention；
Fig. 2 is the structural representation of the second embodiment of the present invention；
Fig. 3 is the structural representation of motor connectors in the present invention；
Fig. 4 a is retina oct image before polarization imbalance is adjusted；
Fig. 4 b is to be adjusted rear retina oct image using the electronic optical fiber polarization controller of the present invention to polarization imbalance.
In figure
1: controller base plate 2: optical fiber fixed support
3: optical fiber fixation clip 4: the first optical fiber adjusts oar rotary shaft rack
5: Optical Fiber Winding disk gland 6: housing pin
7: the first optical fiber adjust oar 8: adjust oar rotary shaft terminal pad
9: the first motor connectors 10: optical fiber fixation clip
11: optical fiber fixed support 12: motor shaft terminal pad
13: motor support 14: the first motor
15: conduction optical fiber 16: the first rotary shaft
17: the first fixed mechanism 18: the second fixed mechanism
19: the first connection ring 20: the second connection ring
21: connecting rod 22: adjust oar rotary shaft fixing hole
23: motor shaft fixing hole 24: the second optical fiber adjusts oar
25: the second rotary shaft 26: the second optical fiber adjusts oar rotary shaft rack
27: the second motor connectors 28: the second motor
29: the three fixed mechanisms 30: optical fiber fixation clip
31: optical fiber fixed support 32: motor support
Specific embodiment
With reference to embodiment and accompanying drawing, a kind of electronic optical fiber polarization controller of the present invention is described in detail.
A kind of electronic optical fiber polarization controller of the present invention, can be single-blade (winding disc) controller or double oar
Two kinds of (winding disc) controller.
There is a kind of electronic optical fiber polarization controller of the present invention of single-blade, as shown in figure 1, including controller base plate 1
Adjust oar 7 with the first optical fiber, the base that described first optical fiber adjusts oar 7 is fixedly installed and rotates to both sides are stretched out first respectively
Axle 16, one end of described first rotary shaft 16 is arranged on the first optical fiber and adjusts on oar rotary shaft rack 4, described first rotary shaft 16
The other end is fixedly connected on one end of the first motor connectors 9, and the other end of described first motor connectors 9 is fixedly connected on
On the output shaft of the first motor 14, wherein, the first described optical fiber adjusts oar rotary shaft rack 4 and is fixed on described controller
On base plate 1, described first motor 14 is fixed on described controller base plate 1 by motor support 13, and described the
One rotary shaft 16 has been axially formed fiber guides groove, and the first optical fiber adjusts and is stamped on oar 7 for preventing from being wrapped in the first optical fiber tune
The Optical Fiber Winding disk gland 5 of conduction optical fiber 15 abjection in section oar 7, it is fixing that described Optical Fiber Winding disk gland 5 passes through housing pin 6
Adjust on oar 7 in the first optical fiber, be wrapped in the first optical fiber and adjust the two ends of the conduction optical fiber 15 in oar 7 respectively by described light
Fine guiding groove is drawn the first optical fiber and is adjusted oar 7, after one end of described conduction optical fiber 15 passes through the first optical fiber to adjust oar rotary shaft rack 4
Fixing by the first fixed mechanism 17, the other end of described conduction optical fiber 15 passes through through after one end of the first motor connectors 9
The second fixed mechanism 18 fixation, the first described fixed mechanism 17 and the second fixed mechanism in the first motor connectors 9
18 are separately fixed on described controller base plate 1.
In the present invention, the fiber guides groove that controlled conduction optical fiber adjusts oar along optical fiber enters optical fiber and adjusts oar, is wrapped in
Winding disc, exports to optical fiber fixed support through fiber guides groove along after winding disc wire casing coiling cabling again, then solid through optical fiber
Fixed pressuring plate compresses, and prevents optical fiber from adjusting oar with optical fiber during adjusting and rotates.
There is a kind of electronic optical fiber polarization controller of the present invention of double oars, as shown in Fig. 2 being the single-blade shown in Fig. 1
It is provided with the second optical fiber on the basis of the electronic optical fiber polarization controller of structure again and adjusts oar 24, described second optical fiber is adjusted on oar 24
One end of the second rotary shaft 25 be mounted on the first fixed mechanism 17 side and be fixed on the second light on controller base plate 1
On fine regulation oar rotary shaft rack 26, the other end that described second optical fiber adjusts the second rotary shaft 25 on oar 24 is arranged on the second electricity
One end of machine adapter 27, the other end of described second motor connectors 27 connects through motor support 32 and is fixed on control
On the output shaft of the second motor 28 on device base plate 1, the conduction optical fiber 15 adjusting oar 7 extraction from the first optical fiber sequentially passes through
After first optical fiber adjusts oar rotary shaft rack 4, the first fixed mechanism 17 and the second optical fiber regulation oar rotary shaft rack 26, by being formed at
The fiber guides groove that second optical fiber is adjusted in second rotary shaft 25 of oar 24 one end enters after being wound around in the second optical fiber regulation oar 24
Fiber guides groove extraction the second optical fiber again adjusting through the second optical fiber in the second rotary shaft 25 of oar 24 other end adjusts after oar 24,
Fixing by the 3rd fixed mechanism 29 in the second motor connectors 27 through after one end of the second motor connectors 27, institute
The 3rd fixed mechanism 29 stated is fixed on described controller base plate 1.
There is the effect of electronic optical fiber polarization controller of the present invention of double paddle structures and the present invention with single-blade structure
Electronic optical fiber polarization controller identical, simply polarization scalable state more flexible compared with single-blade structure, range of accommodation is bigger.
As shown in figure 3, the first motor connectors 9 are identical with the second motor connectors 27 structure, all include two
The connecting rod 21 be arrangeding in parallel and the first connection ring 19 being integrally formed in two connecting rod be arrangeding in parallel 21 two ends respectively
With the second connection ring 20, in the described ring of the first connection ring 19, it is inlaid with regulation oar rotary shaft terminal pad 8, described second connection
It is inlaid with motor shaft terminal pad 12, the described center adjusting oar rotary shaft terminal pad 8 has regulation oar rotary shaft in the ring of ring 20
Fixing hole 22, the center of described motor shaft terminal pad 12 has motor shaft fixing hole 23.
As shown in Figure 1 and Figure 2, the first fixed mechanism 17, the second fixed mechanism 18 and the complete phase of the 3rd fixed mechanism 29 structure
Same, all include the optical fiber fixed support 2,11,31 being fixed on controller base plate 1, and be arranged on fixing of described optical fiber
Frame 2,11,31 upper end is used for fixing the optical fiber fixation clip 3,10,30 of described conduction optical fiber 15.
A kind of electronic optical fiber polarization controller of the present invention, can realize to optical coherence tomography according to test needs
(oct) it is derived from the flashlight of sample arm and the timely adjustment of the polarization state mismatch of the reference light from reference arm in system.
During using oct optical coherence tomography (oct) system to imaging in biological tissues, due to the spy of different tissues
Sex differernce, causes the flashlight from sample arm and the polarization state mismatch of the reference light from reference arm, causes detection image matter
Amount declines.Using the present invention electronic optical fiber polarization controller so that optical fiber adjust oar with motor rotate.Because orientation changes
Become so that the single-mode fiber stress adjusting in oar winding disc changes, and then achieve the flashlight of sample arm and from ginseng
Examine the polarization state mismatch compensation of the reference light of arm, make oct image with improve.
Fig. 4 a is retina oct image before polarization imbalance is adjusted.Fig. 4 b is that a kind of electronic optical fiber polarisation of the present invention controls
Device to polarization imbalance be adjusted after retina oct image.It can be seen that a kind of electronic optical fiber through the present invention is inclined
The oct biological tissue images quality after controller compensation of shaking significantly improves.
Claims (4)
1. a kind of electronic optical fiber polarization controller, includes controller base plate (1) and the first optical fiber and adjusts oar (7), and described first
The base that optical fiber adjusts oar (7) is fixedly installed the first rotary shaft (16) stretched out respectively to both sides it is characterised in that described the
One end of one rotary shaft (16) is arranged on the first optical fiber and adjusts on oar rotary shaft rack (4), described first rotary shaft (16) another
End is fixedly connected on one end of the first motor connectors (9), and the other end of described first motor connectors (9) is fixedly connected on
On the output shaft of the first motor (14), wherein, the first described optical fiber adjusts oar rotary shaft rack (4) and is fixed on described control
On device base plate (1) processed, described first motor (14) is fixed on described controller base plate by motor support (13)
(1) on, described first rotary shaft (16) has been axially formed fiber guides groove, and the first optical fiber adjusts and is stamped for preventing on oar (7)
It is wrapped in the first optical fiber and adjust Optical Fiber Winding disk gland (5) that the conduction optical fiber (15) in oar (7) is deviate from, described Optical Fiber Winding disk
Gland (5) is fixed on the first optical fiber by housing pin (6) and adjusts on oar (7), is wrapped in the first optical fiber and adjusts the biography in oar (7)
The two ends of guiding fiber (15) are drawn the first optical fiber by described fiber guides groove respectively and are adjusted oar (7), described conduction optical fiber
(15) one end is passed through the first optical fiber to adjust oar rotary shaft rack (4) and is fixed by the first fixed mechanism (17) afterwards, described conduction light
The other end of fine (15) is through after one end of the first motor connectors (9) by second in the first motor connectors (9)
Fixed mechanism (18) is fixing, and described the first fixed mechanism (17) and the second fixed mechanism (18) are separately fixed at described control
On device base plate (1).
2. a kind of electronic optical fiber polarization controller according to claim 1 is adjusted it is characterised in that being additionally provided with the second optical fiber
Section oar (24), one end that described second optical fiber adjusts the second rotary shaft (25) on oar (24) is mounted on the first fixed mechanism
(17) side the second optical fiber of being fixed on controller base plate (1) adjusts on oar rotary shaft rack (26), described second optical fiber is adjusted
The other end of the second rotary shaft (25) on section oar (24) is arranged on one end of the second motor connectors (27), described second motor
The other end of adapter (27) connects through the second motor that motor support (32) is fixed on controller base plate (1)
(28), on output shaft, the conduction optical fiber (15) drawn from the first optical fiber regulation oar (7) sequentially passes through the first optical fiber regulation oar and turns
After bracing strut (4), the first fixed mechanism (17) and the second optical fiber adjust oar rotary shaft rack (26), adjusted by being formed at the second optical fiber
Save the fiber guides groove in second rotary shaft (25) of oar (24) one end and enter after the second optical fiber adjusts winding in oar (24) and warp
The fiber guides groove that second optical fiber is adjusted in second rotary shaft (25) of oar (24) other end is drawn the second optical fiber and is adjusted oar (24)
Afterwards, through after one end of the second motor connectors (27) by the 3rd fixed mechanism in the second motor connectors (27)
(29) fixing, the 3rd described fixed mechanism (29) is fixed on described controller base plate (1).
3. a kind of electronic optical fiber polarization controller according to claim 2 is it is characterised in that the first motor connectors (9)
Identical with the second motor connectors (27) structure, all include two connecting rods be arrangeding in parallel (21) and difference one
It is formed at the first connection ring (19) and second connection ring (20) at two connecting rod be arrangeding in parallel (21) two ends, described first
It is inlaid with regulation oar rotary shaft terminal pad (8) in the ring of connection ring (19), in the ring of described second connection ring (20), be inlaid with electricity
Arbor terminal pad (12), the described center adjusting oar rotary shaft terminal pad (8) has regulation oar rotary shaft fixing hole (22), described
The center of motor shaft terminal pad (12) has motor shaft fixing hole (23).
4. a kind of electronic optical fiber polarization controller according to claim 2 it is characterised in that the first fixed mechanism (17),
Second fixed mechanism (18) is identical with the 3rd fixed mechanism (29) structure, all includes and is fixed on controller base plate (1)
Optical fiber fixed support (2,11,31), and be arranged on described optical fiber fixed support (2,11,31) upper end and be used for fixing described biography
The optical fiber fixation clip (3,10,30) of guiding fiber (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452060.7A CN104155754B (en) | 2014-09-05 | 2014-09-05 | Electrical optical fiber polarization controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452060.7A CN104155754B (en) | 2014-09-05 | 2014-09-05 | Electrical optical fiber polarization controller |
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| CN104155754A CN104155754A (en) | 2014-11-19 |
| CN104155754B true CN104155754B (en) | 2017-01-25 |
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| CN201410452060.7A Active CN104155754B (en) | 2014-09-05 | 2014-09-05 | Electrical optical fiber polarization controller |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750928B (en) * | 2016-04-01 | 2017-11-21 | 哈尔滨工程大学 | A kind of mechanical structure realized optical fiber and rotated along axle center |
| CN109031653B (en) * | 2018-07-23 | 2024-05-10 | 图湃(北京)医疗科技有限公司 | Device for automatically controlling and adjusting polarization state of optical fiber |
| CN109407302B (en) * | 2018-11-22 | 2021-03-16 | 桂林聚联科技有限公司 | Polarization controller |
| US11609381B2 (en) * | 2021-07-16 | 2023-03-21 | Canon U.S.A., Inc. | Polarization control module employing hollow shaft motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793678A (en) * | 1985-05-20 | 1988-12-27 | Nippon Telegraph And Telephone Corporation | Fiber optic polarization controller |
| CN2651730Y (en) * | 2003-11-13 | 2004-10-27 | 中国科学院西安光学精密机械研究所 | Precision adjusting fibre-optic polarization controller |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0833517B2 (en) * | 1989-03-10 | 1996-03-29 | 日本電気株式会社 | Polarization control method |
| KR100241660B1 (en) * | 1997-05-22 | 2000-03-02 | 서원석 | Fiber polarization control device |
| CN203414677U (en) * | 2013-07-23 | 2014-01-29 | 西安大盛消防检测有限公司 | Electric optical fiber polarization control device |
-
2014
- 2014-09-05 CN CN201410452060.7A patent/CN104155754B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793678A (en) * | 1985-05-20 | 1988-12-27 | Nippon Telegraph And Telephone Corporation | Fiber optic polarization controller |
| CN2651730Y (en) * | 2003-11-13 | 2004-10-27 | 中国科学院西安光学精密机械研究所 | Precision adjusting fibre-optic polarization controller |
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