CN109031653A - A kind of automatic control and adjustment fiber polarization device - Google Patents
A kind of automatic control and adjustment fiber polarization device Download PDFInfo
- Publication number
- CN109031653A CN109031653A CN201810814250.7A CN201810814250A CN109031653A CN 109031653 A CN109031653 A CN 109031653A CN 201810814250 A CN201810814250 A CN 201810814250A CN 109031653 A CN109031653 A CN 109031653A
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- retarder
- fixedly connected
- optical fiber
- fixed
- motor
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- 230000010287 polarization Effects 0.000 title claims abstract description 59
- 239000000835 fiber Substances 0.000 title claims abstract description 43
- 239000013307 optical fiber Substances 0.000 claims abstract description 86
- 230000010355 oscillation Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 9
- 230000007774 longterm Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000009854 Cucurbita moschata Nutrition 0.000 description 2
- 240000001980 Cucurbita pepo Species 0.000 description 2
- 235000009852 Cucurbita pepo Nutrition 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
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- 235000020354 squash Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Classifications
-
- 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
- G02B26/06—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the phase of light
Abstract
The invention discloses a kind of automatic control and adjustment fiber polarization devices, it is related to technical field of optical fiber communication, including fixed bottom plate, the upper surface of the fixed bottom plate is fixedly connected with retarder firm banking, the upper surface of the retarder firm banking is fixedly connected with fixed plate, the upper surface of the retarder firm banking is fixedly connected with retarder, the inside of the retarder is equipped with drive rod, one end of the drive rod runs through the inner sidewall of retarder and extends to the outside of retarder, the retarder is fixedly connected with motor far from the one side of fixed plate, the output end of the motor runs through the outer surface of retarder and extends to the inside of retarder to be fixedly connected with the drive rod of retarder.The automatic control and adjustment fiber polarization device has and can be realized the same polarization state of accurate and repeatable adjusting, greatly improves fiber polarization and adjusts efficiency and fiber optic loop piece can be made to be fixed on certain position, thus the advantage for keeping fiber polarization constant.
Description
Technical field
The present invention relates to technical field of optical fiber communication, specially a kind of automatic control and adjustment fiber polarization device.
Background technique
With fiber optic communication and the development of sensing technology, the polarization characteristic of optical fiber is increasingly attracted much attention how
Eliminating polarization bring influences, it has also become the emphasis of research, the generally existing following principle of the research of optical fiber polarization controller at present
Such as with method, the Polarization Controller of wave plate formula, electro-optic crystal formula and optical-fiber squeezing type, due to the polarization control of first two form
Device insertion loss processed is high, affected by environment big, so the development of laser generallys use optical fiber squash type Polarization Controller at present,
This just all proposes that very high request, Chinese patent are public to the Polarization Controller of optical fiber squash type in reliability, stability and volume
The number of opening CN104155754A discloses a kind of electronic optical fiber polarization controller, decelerator-free in the program, fixed fiber polarization
When long-term working stability it is bad, China Patent Publication No. CN103885211A is disclosed in a kind of adjusting optical fiber and is transmitted light
The mechanical device of polarization direction, the program apply element by microstress and apply stress to optical fiber, transmit to change in optical fiber
The polarization mode of light, the regulative mode randomness is larger, the polarization state being unable to before re-adjustments, and fiber polarization adjusting cannot
The position of fixed fiber polarization, China Patent Publication No. CN107065173A disclose a kind of microminiature Polarization Controller, should
The structure that polarization state is adjusted in scheme is more complicated, is unfavorable for assembling, polarization state is adjusted by the way of mechanical presses, be not easy to
The re-adjustments of unified polarization state, stability is not high, China Patent Publication No. CN206906697U, discloses a kind of electronic tricyclic
Formula Polarization Controller, decelerator-free in the program, long-term working stability is bad when fixed fiber polarization, and Chinese patent is announced
Number CN102944930A, discloses a kind of device of polarization of light controller, utilizes the quarter indicated on marking thumb wheel in the program
It spends to demarcate the rotation angle or swing offset of optical fiber ring plate, exists and think error, not over the accurate of motor control, opening
The fixed optical fiber ring plate of installation locking fixture, assembling process are more complicated on the panel of hole.
This programme devises a kind of automatic control and adjustment fiber polarization device, mainly accurately controls fiber optic loop using motor
The swing of piece, realizes accurate and repeatable adjusting fiber polarization, and the amplitude of oscillation of optical fiber ring plate can reach ± 100 °, greatly improve
Fiber polarization adjusts efficiency, and in addition this programme can make the fiber optic loop piece be fixed on certain position by retarder, thus
Improve the stability of long-term work.
Summary of the invention
The object of the invention is in order to make up for the deficiencies of the prior art, provide a kind of automatic control and adjustment optical fiber polarisation
State device, it have can be realized it is accurate and it is repeatable adjust same polarization state, greatly improve fiber polarization adjust efficiency and
Fiber optic loop piece can be made to be fixed on certain position, so that the advantage for keeping fiber polarization constant, solves the rotation of optical fiber ring plate
The problem of stability difference when gyration has error and fiber polarization.
The present invention is in order to solve the above technical problems, provide the following technical solutions: a kind of automatic control and adjustment fiber polarization
Device, including fixed bottom plate, the upper surface of the fixed bottom plate are fixedly connected with retarder firm banking, and the retarder is fixed
The upper surface of pedestal is fixedly connected with fixed plate, and the upper surface of the retarder firm banking is fixedly connected with retarder, described
The inside of retarder is equipped with drive rod, and one end of the drive rod runs through the inner sidewall of retarder and extends to the outer of retarder
Portion, the retarder are fixedly connected with motor far from the one side of fixed plate, and the output end of the motor is through the outer of retarder
Surface simultaneously extends to the inside of retarder and is fixedly connected with the drive rod of retarder, and the drive rod is passed through far from one end of retarder
It fastens the outer surface of fixed board and extends to the outside of fixed plate, the drive rod is fixedly connected with first far from one end of retarder
Rotary shaft, first rotary shaft are fixedly connected with oscillating rod, the upper surface of the fixed bottom plate far from the one side of drive rod
It is fixedly connected with rotation bracing strut, the upper surface of the rotation bracing strut is fixedly connected with the second rotary shaft, and the oscillating rod is remote
One end from the first rotary shaft is fixedly connected with the output end of the second rotary shaft, and the outer surface of the oscillating rod is arranged with pin shaft,
The bottom surface of the pin shaft is fixedly connected with optical fiber ring plate, the bottom surface of the optical fiber ring plate open up it is fluted, the fixed bottom plate
Upper surface is fixedly connected with the fixed bracket of the first optical fiber and the fixed bracket of the second optical fiber.
Further, the fixed bracket of first optical fiber is located at the left side of optical fiber ring plate, the fixed bracket of second optical fiber
Positioned at the right side of optical fiber ring plate.
By using above-mentioned technical proposal, can be mentioned by the fixed bracket of the first optical fiber of setting and the fixed bracket of the second optical fiber
Smoothness of high optical fiber during cabling, improves the using effect of automatic control and adjustment fiber polarization device.
Further, the support bracket fastened upper surface of the first optical fiber offers first sliding groove, and second optical fiber is fixed
The upper surface of bracket offers second sliding slot.
By using above-mentioned technical proposal, optical fiber can be connected in it by setting first sliding groove and second sliding slot
Portion avoids the outer surface of optical fiber from being damaged.
Further, the motor is stepper motor, and the upper surface of the motor is fixedly connected with control box, the control box
Output end be electrically connected with the control terminal of motor.
By using above-mentioned technical proposal, pulse signal is sent to motor by control box, the rotor of motor is permanent magnet,
When electric current flows through stator winding, stator winding generates a Vector Magnetic Field.The magnetic field will drive rotor and rotate an angle, so that turning
Son a pair of magnetic field direction it is consistent with the magnetic direction of stator, when stator Vector Magnetic Field rotate an angle, rotor also with
The magnetic field turns an angle, and one electric pulse of every input, one angle of motor rotation takes a step forward, angular displacement that it is exported and
The umber of pulse of input is directly proportional, revolving speed is directly proportional to pulse frequency, changes the sequence that winding is powered, and motor will invert, pass through
The rotation of stepper motor can be controlled with the power-up sequence of control number of pulses, frequency and each phase winding of motor.
Further, the output shaft of the motor is consistent with the drive rod concentricity of retarder, selected retarder it is specified
Power meets PC=P2 × KA × KS × KR≤PN.
By using above-mentioned technical proposal, COEFFICIENT K R is exactly that reliability actually required repairs intrinsic reliability
Just, it meets ISO6336, GB3480 and AGMA2001-B88 to the regulation of strength of gear teeth calculation method.
Further, the amplitude of oscillation of the motor control optical fiber ring plate can reach ± 100 °, and the optical fiber ring plate is vertical always
It is fixed on the bottom of oscillating rod.
By using above-mentioned technical proposal, greatly improves fiber polarization and adjust efficiency, can be realized accurate and repeatable
Adjust same polarization state.
Further, the retarder can make optical fiber ring plate when stopping swinging, and be fixed on the angle position for swinging and stopping
It sets.
By using above-mentioned technical proposal, to keep fiber polarization constant, long-term working stability is improved.
Further, the first sliding groove, second sliding slot and groove are located at same level.
By using above-mentioned technical proposal, frictional strength when optical fiber cabling is reduced, the service life of optical fiber is extended.
Compared with prior art, the automatic control and adjustment fiber polarization device have it is following the utility model has the advantages that
1, the rated power of retarder selected by the present invention meets PC=P2 × KA × KS × KR≤PN, and COEFFICIENT K R is exactly practical
The reliability needed is modified intrinsic reliability, it meets ISO6336, GB3480 and AGMA2001-B88 to tooth
Take turns the regulation of strength calculation method, high reliablity.
2, optical fiber can be improved in cabling by the fixed bracket of the first optical fiber of setting and the fixed bracket of the second optical fiber in the present invention
Smoothness in the process improves the using effect of automatic control and adjustment fiber polarization device.
3, by setting first sliding groove and second sliding slot can by optical fiber clamping inside it, avoid the outer surface of optical fiber by
It to damage, greatly improves fiber polarization and adjusts efficiency, can be realized the same polarization state of accurate and repeatable adjusting.
4, retarder can make optical fiber ring plate when stopping swinging, and be fixed on the angle position for swinging and stopping to keeping light
Fine polarization state is constant, improves long-term working stability, reduces frictional strength when optical fiber cabling, and extend optical fiber uses the longevity
Life.
Detailed description of the invention
Fig. 1 is the fixed bracket cross-sectional view of the first optical fiber of the invention；
Fig. 2 is that optical fiber of the present invention moves towards schematic diagram.
In figure: the fixed bottom plate of 1-, 2- retarder firm banking, 3- fixed plate, 4- retarder, 5- motor, 6- drive rod, 7-
First rotary shaft, 8- oscillating rod, 9- rotate bracing strut, the second rotary shaft of 10-, and 11- controls box, and the first optical fiber of 12- fixes bracket,
13- pin shaft, 14- optical fiber ring plate, 15- groove, the fixed bracket of the second optical fiber of 16-, 17- first sliding groove, 18- second sliding slot.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of automatic control and adjustment fiber polarization device, packet
Fixed bottom plate 1 is included, the upper surface of fixed bottom plate 1 is fixedly connected with retarder firm banking 2, the upper table of retarder firm banking 2
Face is fixedly connected with fixed plate 3, and the upper surface of retarder firm banking 2 is fixedly connected with retarder 4, and the inside of retarder 4 is set
There is drive rod 6, one end of drive rod 6 runs through the inner sidewall of retarder 4 and extends to the outside of retarder 4, and retarder 4 is far from solid
The one side of fixed board 3 is fixedly connected with motor 5, and the output end of motor 5 runs through the outer surface of retarder 4 and extends to retarder 4
Inside be fixedly connected with the drive rod 6 of retarder 4, drive rod 6 far from retarder 4 one end run through fixed plate 3 outer surface
And the outside of fixed plate 3 is extended to, drive rod 6 is fixedly connected with the first rotary shaft 7, the first rotation far from one end of retarder 4
Axis 7 is fixedly connected with oscillating rod 8 far from the one side of drive rod 6, and the upper surface of fixed bottom plate 1 is fixedly connected with rotation bracing strut
9, the upper surface of rotation bracing strut 9 is fixedly connected with the second rotary shaft 10, the one end of oscillating rod 8 far from the first rotary shaft 7 and the
The output end of two rotary shafts 10 is fixedly connected, and the outer surface of oscillating rod 8 is arranged with pin shaft 13, and the bottom surface of pin shaft 13 is fixedly connected with
Optical fiber ring plate 14, the bottom surface of optical fiber ring plate 14 open up fluted 15, and it is solid that the upper surface of fixed bottom plate 1 is fixedly connected with the first optical fiber
Fixed rack 12 and the fixed bracket 16 of the second optical fiber.
Further, the fixed bracket 12 of the first optical fiber is located at the left side of optical fiber ring plate 14, fixed 16, the bracket of the second optical fiber
In the right side of optical fiber ring plate 14, optical fiber can be improved by the fixed bracket 12 of the first optical fiber of setting and the fixed bracket 16 of the second optical fiber
Smoothness during cabling improves the using effect of automatic control and adjustment fiber polarization device.
Further, the upper surface of the fixed bracket 12 of the first optical fiber offers first sliding groove 17, the fixed bracket of the second optical fiber
16 upper surface offers second sliding slot 18, optical fiber can be connected in it by setting first sliding groove 17 and second sliding slot 18
Portion avoids the outer surface of optical fiber from being damaged.
Further, motor 5 is stepper motor, and the upper surface of motor 5 is fixedly connected with control box 11, controls the output of box 11
End is electrically connected with the control terminal of motor 5, sends pulse signal to motor 5 by control box 11, and the rotor of motor 5 is permanent magnet,
When electric current flows through stator winding, stator winding generates a Vector Magnetic Field.The magnetic field will drive rotor and rotate an angle, so that turning
Son a pair of magnetic field direction it is consistent with the magnetic direction of stator, when stator Vector Magnetic Field rotate an angle, rotor also with
The magnetic field turns an angle, and one electric pulse of every input, one angle of motor rotation takes a step forward, angular displacement that it is exported and
The umber of pulse of input is directly proportional, revolving speed is directly proportional to pulse frequency, changes the sequence that winding is powered, and motor 5 will invert, pass through
The rotation of stepper motor can be controlled with the power-up sequence of control number of pulses, frequency and each phase winding of motor.
Further, the output shaft of motor 5 is consistent with 6 concentricity of drive rod of retarder 4, selected retarder 4 it is specified
Power meets PC=P2 × KA × KS × KR≤PN, and COEFFICIENT K R is exactly that reliability actually required carries out intrinsic reliability
Amendment, it meets ISO6336, GB3480 and AGMA2001-B88 to the regulation of strength of gear teeth calculation method.
Further, the amplitude of oscillation that motor 5 controls optical fiber ring plate 14 can reach ± 100 °, and optical fiber ring plate 14 is vertical always fixed
It in the bottom of oscillating rod 8, greatly improves fiber polarization and adjusts efficiency, can be realized the same polarization of accurate and repeatable adjusting
State.
Further, retarder 4 can make optical fiber ring plate 14 when stopping swinging, and be fixed on the angle position for swinging and stopping
It sets, to keep fiber polarization constant, improves long-term working stability.
Further, first sliding groove 17, second sliding slot 18 and groove 15 are located at same level, when reducing optical fiber cabling
Frictional strength extends the service life of optical fiber.
Working principle: optical fiber is extended to the groove 15 of optical fiber ring plate 14 by the fixed bracket 12 of the first optical fiber first, so
The fixed bracket 16 of the second optical fiber is extended to along bottom groove 15 after three circle of winding in optical fiber ring plate 14 afterwards, uses retarder 4
It is transferred to the first rotary shaft 7 after 5 revolving speed of motor is converted to certain speed, oscillating rod 8 and light are driven by the first rotary shaft 7
Fine ring plate 14 is according to certain rules that axis is swung with the groove 15 in optical fiber ring plate 14.
In the description of the present invention, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include so that include a series of elements process, method, article or equipment not only include those elements, but also
Including other elements that are not explicitly listed, or further include for this process, method, article or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence " including a reference structure ", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.It should be noted that, in this document, all
As the relational terms of " first ", " second " or the like are used merely to an entity or operation and another entity or operating space
It separates, without necessarily requiring or implying between these entities or operation, there are any actual relationship or orders.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understand without departing from the principles and spirit of the present invention can to these embodiments carry out it is a variety of variation,
Modification, replacement and variant, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of automatic control and adjustment fiber polarization device, including fixed bottom plate (1), the upper surface of the fixed bottom plate (1)
It is fixedly connected with retarder firm banking (2), it is characterised in that: the upper surface of the retarder firm banking (2) is fixedly connected
Have fixed plate (3), the upper surface of the retarder firm banking (2) is fixedly connected with retarder (4), the retarder (4)
Inside is equipped with drive rod (6), and one end of the drive rod (6) runs through the inner sidewall of retarder (4) and extends to retarder (4)
Outside, the retarder (4) are fixedly connected with motor (5) far from the one side of fixed plate (3), the output end of the motor (5)
Through retarder (4) outer surface and extend to the inside of retarder (4) and be fixedly connected with the drive rod (6) of retarder (4), institute
The one end of drive rod (6) far from retarder (4) is stated through the outer surface of fixed plate (3) and extends to the outside of fixed plate (3), institute
It states drive rod (6) to be fixedly connected with the first rotary shaft (7) far from the one end of retarder (4), first rotary shaft (7) is far from biography
The one side of lever (6) is fixedly connected with oscillating rod (8), and the upper surface of the fixed bottom plate (1) is fixedly connected with rotary shaft branch
The upper surface of frame (9), rotation bracing strut (9) is fixedly connected with the second rotary shaft (10), and the oscillating rod (8) is far from first
One end of rotary shaft (7) is fixedly connected with the output end of the second rotary shaft (10), and the outer surface of the oscillating rod (8) is arranged with pin
The bottom surface of axis (13), the pin shaft (13) is fixedly connected with optical fiber ring plate (14), and the bottom surface of the optical fiber ring plate (14) offers
Groove (15), the upper surface of the fixed bottom plate (1) is fixedly connected with the first optical fiber fixed bracket (12) and the second optical fiber is fixed
Bracket (16).
2. a kind of automatic control and adjustment fiber polarization device according to claim 1, it is characterised in that: first light
Fibre fixed bracket (12) is located at the left side of optical fiber ring plate (14), and second optical fiber fixed bracket (16) is located at optical fiber ring plate (14)
Right side.
3. a kind of automatic control and adjustment fiber polarization device according to claim 1, it is characterised in that: first light
The upper surface of fibre fixed bracket (12) offers first sliding groove (17), and the upper surface of second optical fiber fixed bracket (16) opens up
There are second sliding slot (18).
4. a kind of automatic control and adjustment fiber polarization device according to claim 1, it is characterised in that: the motor
(5) be stepper motor, the upper surface of the motor (5) be fixedly connected control box (11), it is described control box (11) output end with
The control terminal of motor (5) is electrically connected.
5. a kind of automatic control and adjustment fiber polarization device according to claim 1, it is characterised in that: the motor
(5) output shaft is consistent with drive rod (6) concentricity of retarder (4), and the rated power of selected retarder (4) meets PC=P2
×KA×KS×KR≤PN。
6. a kind of automatic control and adjustment fiber polarization device according to claim 1, it is characterised in that: the motor
(5) amplitude of oscillation for controlling optical fiber ring plate (14) can reach ± 100 °, and the optical fiber ring plate (14) is vertically fixed on oscillating rod (8) always
Bottom.
7. a kind of automatic control and adjustment fiber polarization device according to claim 1, it is characterised in that: the retarder
(4) optical fiber ring plate (14) can be made when stopping swinging, be fixed on the angle position for swinging and stopping.
8. a kind of automatic control and adjustment fiber polarization device according to claim 3, it is characterised in that:
The first sliding groove (17), second sliding slot (18) and groove (15) are located at same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810814250.7A CN109031653A (en) | 2018-07-23 | 2018-07-23 | A kind of automatic control and adjustment fiber polarization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810814250.7A CN109031653A (en) | 2018-07-23 | 2018-07-23 | A kind of automatic control and adjustment fiber polarization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109031653A true CN109031653A (en) | 2018-12-18 |
Family
ID=64644286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810814250.7A Pending CN109031653A (en) | 2018-07-23 | 2018-07-23 | A kind of automatic control and adjustment fiber polarization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109031653A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20050002099A1 (en) * | 2002-10-30 | 2005-01-06 | Jian He | Polarization dependent loss loop |
| 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 |
| CN203967502U (en) * | 2014-03-12 | 2014-11-26 | 深圳大学 | Electronic Polarization Controller |
| CN104423076A (en) * | 2013-08-28 | 2015-03-18 | 安徽量子通信技术有限公司 | Polarization controller |
| CN206906697U (en) * | 2017-04-25 | 2018-01-19 | 上海交通大学 | Electronic three-ring type Polarization Controller |
| CN208421411U (en) * | 2018-07-23 | 2019-01-22 | 北京图湃影像科技有限公司 | A kind of automatic control and adjustment fiber polarization device |
-
2018
- 2018-07-23 CN CN201810814250.7A patent/CN109031653A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050002099A1 (en) * | 2002-10-30 | 2005-01-06 | Jian He | Polarization dependent loss loop |
| 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 |
| 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 |
| CN203967502U (en) * | 2014-03-12 | 2014-11-26 | 深圳大学 | Electronic 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 |
| CN206906697U (en) * | 2017-04-25 | 2018-01-19 | 上海交通大学 | Electronic three-ring type Polarization Controller |
| CN208421411U (en) * | 2018-07-23 | 2019-01-22 | 北京图湃影像科技有限公司 | A kind of automatic control and adjustment fiber polarization device |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 101-F401, 1st to 6th floors, Building 3, No. 9 Life Park Road, Life Science Park, Changping District, Beijing, 100192 Applicant after: Tupai (Beijing) Medical Technology Co.,Ltd. Address before: 100192 203, unit a, building 2, Tiandi Linfeng Innovation Industrial Park, Haidian District, Beijing Applicant before: BEIJING TOPI IMAGING TECHNOLOGY Co.,Ltd. Country or region before: China |