CN104155754A - Electrical optical fiber polarization controller - Google Patents
Electrical optical fiber polarization controller Download PDFInfo
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- CN104155754A CN104155754A CN201410452060.7A CN201410452060A CN104155754A CN 104155754 A CN104155754 A CN 104155754A CN 201410452060 A CN201410452060 A CN 201410452060A CN 104155754 A CN104155754 A CN 104155754A
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- optical fiber
- oar
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- turning axle
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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.Particularly relate to a kind of electronic optical fiber polarization controller.
Background technology
In order to simplify optical system structure, in many optical systems, all adopted the light-conductive media of optical fiber as light.As, what in optical coherence tomography (OCT) system, mostly adopt is optical fiber light-guiding pattern, has greatly reduced the complexity of system, makes this technology be easier to commercialization.But due to single-mode fiber birefringent characteristic, optical fiber output polarization state can change with temperature, pressure and the various factors such as crooked, thereby causes from the flashlight of sample arm and from polarization state mismatch between the reference light of reference arm, affect sensitivity and the resolving power of system.Therefore, Polarization Control is coherent optical-fiber, communication system, and an extremely important problem in other coherent measurement system.Adopting optical fiber polarization controller is the effective technological means addressing this problem.In addition, in optical coherence tomography (OCT) system, due to tested biological tissue (as: ocular tissue) individual difference, test light also can cause that when tested tissue conducted inside polarization state changes, and also can cause that image quality declines.For guaranteeing the image quality of measuring system, in testing process, need to adjust for different tested tissue the polarization state of optical fiber, the system polarization state imbalance causing with the individual difference compensating because of tested tissue, makes picture quality reach best.Obviously, existing manual optical fiber polarization controller cannot meet the demand of test macro timely adjustment.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of and can in testing process, for different tested tissue, adjust the electronic optical fiber polarization controller of the polarization state of optical fiber.
The technical solution adopted in the present invention is: a kind of electronic optical fiber polarization controller, include controller base plate and the first optical fiber and regulate oar, described the first optical fiber regulates the base of oar to be fixedly installed the first turning axle stretching out to both sides respectively, one end of described the first turning axle is arranged on the first optical fiber and regulates on oar rotary shaft rack, the other end of described the first turning axle is fixedly connected on one end of the first motor connector, the other end of described the first motor connector is fixedly connected on the output shaft of the first stepper motor, wherein, the first described optical fiber regulates oar rotary shaft rack to be fixed on described controller base plate, described the first stepper motor is fixed on described controller base plate by stepper motor support, described the first turning axle is axially formed with fiber guides groove, being wrapped in the first optical fiber regulates the two ends of the conduction optical fiber in oar by described fiber guides groove, to draw the first optical fiber adjusting oar respectively, one end of described conduction optical fiber is fixed by the first fixed mechanism after regulating oar rotary shaft rack through the first optical fiber, the other end of described conduction optical fiber is fixed by being positioned at the second fixed mechanism of the first motor connector through behind one end of the first motor connector, the first described fixed mechanism and the second fixed mechanism are separately fixed on described controller base plate.
Also be provided with the second optical fiber and regulate oar, one end of the second turning axle on described the second optical fiber adjusting oar is arranged on the second optical fiber that is positioned at the first fixed mechanism one side and is fixed on controller base plate and regulates on oar rotary shaft rack, described the second optical fiber regulates the other end of the second turning axle on oar to be arranged on one end of the second motor connector, the other end connection of described the second motor connector is fixed on the output shaft of the second stepper motor on controller base plate by stepper motor support, from the first optical fiber, regulate the conduction optical fiber that oar is drawn through the first optical fiber, to regulate oar rotary shaft rack successively, the first fixed mechanism and the second optical fiber regulate after oar rotary shaft rack, by being formed on the second optical fiber, regulating fiber guides groove on second turning axle of oar one end to enter the second optical fiber regulates and through the second optical fiber, regulates fiber guides groove on the second turning axle of the oar other end to draw the second optical fiber again after being wound around in oar to regulate after oar, through behind one end of the second motor connector, by being positioned at the 3rd fixed mechanism of the second motor connector, fix, the 3rd described fixed mechanism is fixed on described controller base plate.
The first motor connector is identical with the second motor connector construction, the first abutment ring and the second abutment ring that include two connecting links that be arranged in parallel and be integrally formed in respectively two connecting link two ends that be arranged in parallel, in the ring of the first described abutment ring, be inlaid with and regulate oar turning axle terminal pad, in the ring of described the second abutment ring, be inlaid with motor shaft terminal pad, the center of described adjusting oar turning axle terminal pad has and regulates oar turning axle fixed orifice, and the center of described motor shaft terminal pad has motor shaft fixed orifice.
The first fixed mechanism, the second fixed mechanism are identical with the 3rd fixed mechanism structure, include the optical fiber fixed support being fixed on controller base plate, and be arranged on described optical fiber fixed support upper end for the optical fiber fixation clip of fixing described conduction optical fiber.
A kind of electronic optical fiber polarization controller of the present invention, can be according to test needs, realize the timely adjustment with the polarization state mismatch of reference light from reference arm from the flashlight of sample arm in optical coherence tomography (OCT) system.In testing process, can adjust for different tested tissue the polarization state of optical fiber, the system polarization state imbalance causing with the individual difference compensating because of tested tissue, makes picture quality reach best.
Accompanying drawing explanation
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 connector in the present invention;
Fig. 4 a is retina OCT image before polarization imbalance regulates;
Fig. 4 b adopts electronic optical fiber polarization controller of the present invention to regulate rear retina OCT image to polarization.
In figure
1: controller base plate 2: optical fiber fixed support
3: 4: the first optical fiber of optical fiber fixation clip regulates oar rotary shaft rack
5: Optical Fiber Winding dish gland 6: forcing screw
Within 7: the first, optical fiber regulates oar 8: regulate oar turning axle terminal pad
9: the first motor connectors 10: optical fiber fixation clip
11: optical fiber fixed support 12: motor shaft terminal pad
13: 14: the first stepper motors of stepper motor support
15: 16: the first turning axles of conduction optical fiber
18: the second fixed mechanisms of 17: the first fixed mechanisms
20: the second abutment rings of 19: the first abutment rings
21: connecting link 22: regulate oar turning axle fixed orifice
23: 24: the second optical fiber of motor shaft fixed orifice regulates oar
26: the second optical fiber of 25: the second turning axles regulates oar rotary shaft rack
28: the second stepper motors of 27: the second motor connectors
29: the three fixed mechanisms 30: optical fiber fixation clip
31: optical fiber fixed support 32: stepper motor support
Embodiment
Below in conjunction with 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, can be also two kinds of two oar (winding disc) controllers.
Of the present invention a kind of electronic optical fiber polarization controller with single-blade, as shown in Figure 1, include controller base plate 1 and the first optical fiber and regulate oar 7, described the first optical fiber regulates the base of oar 7 to be fixedly installed the first turning axle 16 stretching out to both sides respectively, one end of described the first turning axle 16 is arranged on the first optical fiber and regulates on oar rotary shaft rack 4, the other end of described the first turning axle 16 is fixedly connected on one end of the first motor connector 9, the other end of described the first motor connector 9 is fixedly connected on the output shaft of the first stepper motor 14, wherein, the first described optical fiber regulates oar rotary shaft rack 4 to be fixed on described controller base plate 1, described the first stepper motor 14 is fixed on described controller base plate 1 by stepper motor support 13, described the first turning axle 16 is axially formed with fiber guides groove, being wrapped in the first optical fiber regulates the two ends of the conduction optical fiber 15 in oar 7 by described fiber guides groove, to draw the first optical fiber adjusting oar 7 respectively, one end of described conduction optical fiber 15 is fixed by the first fixed mechanism 17 after regulating oar rotary shaft rack 4 through the first optical fiber, the other end of described conduction optical fiber 15 is through fixing by being positioned at the second fixed mechanism 18 of the first motor connector 9 behind one end of the first motor connector 9, the first described fixed mechanism 17 and the second fixed mechanism 18 are separately fixed on described controller base plate 1.
In the present invention, controlled conduction optical fiber regulates the fiber guides groove of oar to enter optical fiber along optical fiber and regulates oar, be wrapped in winding disc, after winding disc wire casing coiling cabling, through fiber guides groove, export optical fiber fixed support to again, then through optical fiber fixation clip, compress, prevent that optical fiber from regulating oar to rotate with optical fiber in adjustment process.
Of the present invention a kind of electronic optical fiber polarization controller with two oars, as shown in Figure 2, on the electronic optical fiber polarization controller basis of the single-blade structure shown in Fig. 1, to be provided with again the second optical fiber to regulate oar 24, one end of the second turning axle 25 on described the second optical fiber adjusting oar 24 is arranged on the second optical fiber that is positioned at the first fixed mechanism 17 1 sides and is fixed on controller base plate 1 and regulates on oar rotary shaft rack 26, described the second optical fiber regulates the other end of the second turning axle 25 on oar 24 to be arranged on one end of the second motor connector 27, the other end connection of described the second motor connector 27 is fixed on the output shaft of the second stepper motor 28 on controller base plate 1 by stepper motor support 32, from the first optical fiber, regulate the conduction optical fiber 15 that oar 7 is drawn through the first optical fiber, to regulate oar rotary shaft rack 4 successively, the first fixed mechanism 17 and the second optical fiber regulate after oar rotary shaft rack 26, by being formed on the second optical fiber, regulating fiber guides groove on second turning axle 25 of oar 24 one end to enter the second optical fiber regulates after the interior winding of oar 24 again and through the second optical fiber, to regulate fiber guides groove on the second turning axle 25 of oar 24 other ends to draw the second optical fiber to regulate after oar 24, through fixing by being positioned at the 3rd fixed mechanism 29 of the second motor connector 27 behind one end of the second motor connector 27, the 3rd described fixed mechanism 29 is fixed on described controller base plate 1.
The effect of electronic optical fiber polarization controller of the present invention with two paddle structures is identical with the of the present invention electronic optical fiber polarization controller with single-blade structure, and just the adjustable state of polarization is more flexible compared with single-blade structure, and range of adjustment is larger.
As shown in Figure 3, the first motor connector 9 is identical with the second motor connector 27 structures, the first abutment ring 19 and the second abutment ring 20 that include two connecting links that be arranged in parallel 21 and be integrally formed in respectively two connecting link be arrangeding in parallel 21 two ends, in the ring of the first described abutment ring 19, be inlaid with and regulate oar turning axle terminal pad 8, in the ring of described the second abutment ring 20, be inlaid with motor shaft terminal pad 12, the center of described adjusting oar turning axle terminal pad 8 has and regulates oar turning axle fixed orifice 22, described motor shaft terminal pad 12 center has motor shaft fixed orifice 23.
As shown in Figure 1 and Figure 2, the first fixed mechanism 17, the second fixed mechanism 18 are identical with the 3rd fixed mechanism 29 structures, include the optical fiber fixed support 2,11,31 being fixed on controller base plate 1, and be arranged on described optical fiber fixed support 2,11,31 upper ends for the optical fiber fixation clip 3,10,30 of fixing described conduction optical fiber 15.
A kind of electronic optical fiber polarization controller of the present invention, can be according to test needs, realize the timely adjustment with the polarization state mismatch of reference light from reference arm from the flashlight of sample arm in optical coherence tomography (OCT) system.
Utilize OCT optical coherence tomography (OCT) system to imaging in biological tissues process in, due to the property difference of different tissues, cause the polarization state mismatch with reference light from reference arm from the flashlight of sample arm, cause detected image Quality Down.Adopt electronic optical fiber polarization controller of the present invention, make optical fiber regulate oar with electric machine rotation.Because orientation changes, make to regulate the single-mode fiber stress in oar winding disc to change, and then the polarization state mismatch compensation of the flashlight of having realized sample arm and reference light from reference arm, make OCT image to improve.
Fig. 4 a is retina OCT image before polarization imbalance regulates.Fig. 4 b is the retina OCT image after a kind of electronic optical fiber polarization controller of the present invention regulates polarization.As can be seen from the figure, the OCT biological tissue images quality after a kind of electronic optical fiber polarization controller compensation of the present invention obviously improves.
Claims (4)
1. an electronic optical fiber polarization controller, include controller base plate (1) and the first optical fiber and regulate oar (7), described the first optical fiber regulates the base of oar (7) to be fixedly installed the first turning axle (16) stretching out to both sides respectively, it is characterized in that, one end of described the first turning axle (16) is arranged on the first optical fiber and regulates on oar rotary shaft rack (4), the other end of described the first turning axle (16) is fixedly connected on one end of the first motor connector (9), the other end of described the first motor connector (9) is fixedly connected on the output shaft of the first stepper motor (14), wherein, the first described optical fiber regulates oar rotary shaft rack (4) to be fixed on described controller base plate (1), described the first stepper motor (14) is fixed on described controller base plate (1) by stepper motor support (13), described the first turning axle (16) is axially formed with fiber guides groove, being wrapped in the first optical fiber regulates the two ends of the conduction optical fiber (15) in oar (7) by described fiber guides groove, to draw the first optical fiber adjusting oar (7) respectively, one end of described conduction optical fiber (15) is fixed by the first fixed mechanism (17) after regulating oar rotary shaft rack (4) through the first optical fiber, the other end of described conduction optical fiber (15) is through fixing by being positioned at second fixed mechanism (18) of the first motor connector (9) behind one end of the first motor connector (9), described the first fixed mechanism (17) and the second fixed mechanism (18) are separately fixed on described controller base plate (1).
2. a kind of electronic optical fiber polarization controller according to claim 1, it is characterized in that, also be provided with the second optical fiber and regulate oar (24), one end of the second turning axle (25) on described the second optical fiber adjusting oar (24) is arranged on the second optical fiber that is positioned at the first fixed mechanism (17) one sides and is fixed on controller base plate (1) and regulates on oar rotary shaft rack (26), described the second optical fiber regulates the other end of the second turning axle (25) on oar (24) to be arranged on one end of the second motor connector (27), the other end connection of described the second motor connector (27) is fixed on the output shaft of the second stepper motor (28) on controller base plate (1) by stepper motor support (32), from the first optical fiber, regulate the conduction optical fiber (15) that oar (7) is drawn through the first optical fiber, to regulate oar rotary shaft rack (4) successively, the first fixed mechanism (17) and the second optical fiber regulate after oar rotary shaft rack (26), by being formed on the second optical fiber, regulating fiber guides groove on second turning axle (25) of oar (24) one end to enter the second optical fiber regulates and through the second optical fiber, regulates fiber guides groove on second turning axle (25) of oar (24) other end to draw the second optical fiber again after being wound around in oar (24) to regulate after oar (24), through fixing by being positioned at the 3rd fixed mechanism (29) of the second motor connector (27) behind one end of the second motor connector (27), 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 1 and 2, it is characterized in that, the first motor connector (9) is identical with the second motor connector (27) structure, the first abutment ring (19) and the second abutment ring (20) that include two connecting links that be arranged in parallel (21) and be integrally formed in respectively two connecting links that be arranged in parallel (21) two ends, in the ring of described the first abutment ring (19), be inlaid with and regulate oar turning axle terminal pad (8), in the ring of described the second abutment ring (20), be inlaid with motor shaft terminal pad (12), the center of described adjusting oar turning axle terminal pad (8) has and regulates oar turning axle fixed orifice (22), the center of described motor shaft terminal pad (12) has motor shaft fixed orifice (23).
4. according to claim 1 or described a kind of electronic optical fiber polarization controller, it is characterized in that, the first fixed mechanism (17), the second fixed mechanism (18) are identical with the 3rd fixed mechanism (29) structure, include the optical fiber fixed support (2,11,31) being fixed on controller base plate (1), and be arranged on described optical fiber fixed support (2,11,31) upper end for the optical fiber fixation clip (3,10,30) of fixing described conduction optical 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 true CN104155754A (en) | 2014-11-19 |
| CN104155754B 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750928A (en) * | 2016-04-01 | 2016-07-13 | 哈尔滨工程大学 | Mechanical structure for enabling optical fibers to axially rotate |
| CN109031653A (en) * | 2018-07-23 | 2018-12-18 | 北京图湃影像科技有限公司 | A kind of automatic control and adjustment fiber polarization device |
| CN109407302A (en) * | 2018-11-22 | 2019-03-01 | 桂林聚联科技有限公司 | A kind of Polarization Controller |
| US20230015126A1 (en) * | 2021-07-16 | 2023-01-19 | Canon U.S.A., Inc. | Polarization Control Module Employing Hollow Shaft Motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0386790A2 (en) * | 1989-03-10 | 1990-09-12 | Nec Corporation | Method for controlling a polarization of light |
| WO1998053352A1 (en) * | 1997-05-22 | 1998-11-26 | Donam Systems Inc. | Optical fiber 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 |
| 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 |
Family Cites Families (1)
| 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 |
-
2014
- 2014-09-05 CN CN201410452060.7A patent/CN104155754B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0386790A2 (en) * | 1989-03-10 | 1990-09-12 | Nec Corporation | Method for controlling a polarization of light |
| WO1998053352A1 (en) * | 1997-05-22 | 1998-11-26 | Donam Systems Inc. | Optical fiber 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 |
| 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750928A (en) * | 2016-04-01 | 2016-07-13 | 哈尔滨工程大学 | Mechanical structure for enabling optical fibers to axially rotate |
| 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 |
| CN109031653A (en) * | 2018-07-23 | 2018-12-18 | 北京图湃影像科技有限公司 | A kind of automatic control and adjustment fiber polarization device |
| 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 |
| CN109407302A (en) * | 2018-11-22 | 2019-03-01 | 桂林聚联科技有限公司 | A kind of Polarization Controller |
| US20230015126A1 (en) * | 2021-07-16 | 2023-01-19 | Canon U.S.A., Inc. | Polarization Control Module Employing Hollow Shaft Motor |
| US11609381B2 (en) * | 2021-07-16 | 2023-03-21 | Canon U.S.A., Inc. | Polarization control module employing hollow shaft motor |
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| CN104155754B (en) | 2017-01-25 |
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