CN203967502U - Electronic Polarization Controller - Google Patents
Electronic Polarization Controller Download PDFInfo
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- CN203967502U CN203967502U CN201420109969.8U CN201420109969U CN203967502U CN 203967502 U CN203967502 U CN 203967502U CN 201420109969 U CN201420109969 U CN 201420109969U CN 203967502 U CN203967502 U CN 203967502U
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- polarization controller
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- electronic polarization
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Abstract
The utility model relates to technical field of optical fiber communication, relates in particular to a kind of electronic Polarization Controller.This electronic Polarization Controller comprises annular polarization controller, and each circulator of described annular polarization controller connects respectively a motor, by its rotation of Electric Machine Control separately.Compared with prior art, the utility model rotates by the circulator of Electric Machine Control annular polarization controller, overcome that manual type Polarization Controller control precision is low, loss is large, inefficient shortcoming, can make light laser produce stable multiwavelength laser output.
Description
Technical field
The utility model relates to technical field of optical fiber communication, relates in particular to a kind of electronic Polarization Controller.
Background technology
Multi-wavelength optical fiber laser is a LASER Light Source that class cost is low, efficiency is high, having very large application potential at aspects such as the chromatic dispersion tests such as optical WDM communication system, Fibre Optical Sensor, optical device performance test and material, is that the another kind except mode locked fiber laser causes the fiber laser that people greatly pay close attention in recent years.And Er-doped fiber has very high gain at 1550nm wave band, corresponding low-loss is at third communication window, and due to its potential using value, the development of erbium doped fiber laser is very rapid.
But the HOMOGENEOUS BROADENING mechanism of Er-doped fiber may cause mode competition and saltus step, for obtaining stable multi-wavelength output, key is suppression mode competition.Although Er-doped fiber is immersed in liquid nitrogen and can obtains multi-wavelength output, can not work at room temperature.In recent years, had several different methods as: introduce frequency displacement feedback mechanism, polarization hole burning, four-wave mixing effect etc. and obtain multi-wavelength output, but these method structures are more complicated and have certain condition restriction.
And one of major technique of nonlinear polarization rotation to be laser realize multi-wavelength output.Utilize Polarization Controller as wavelength tuning device, realized the Multiple Wavelength of fiber laser by nonlinear polarization rotation effect.The relevant non-homogeneous loss of intensity of nonlinear polarization rotation induction has suppressed the mode competition in HOMOGENEOUS BROADENING gain media Er-doped fiber effectively, makes fiber laser at room temperature produce stable multi-wavelength output.
At present, common Polarization Controller is generally manual mode, although this kind of tilt controller is simple in structure, cost is low, directly manual operation, but, owing to being manual operation, cause precision low, loss is large, efficiency is low, is not suitable for and makes fiber laser at room temperature produce stable multi-wavelength output.
Utility model content
Technical problem to be solved in the utility model is: a kind of electronic Polarization Controller is provided, and to solve, manual Polarization Controller precision is low, loss is large, inefficient shortcoming.The utility model is achieved in that
A kind of electronic Polarization Controller, comprises annular polarization controller, and each circulator of described annular polarization controller connects respectively a motor, by its rotation of Electric Machine Control separately.
Further, described electronic Polarization Controller also comprises:
Main control unit, is connected with described motor, for controlling described electric machine rotation;
Parameter of electric machine setting unit, is connected with described main control unit, for the rotational parameters of described motor is set.
Further, described motor is stepping motor, and described main control unit comprises the single-chip microcomputer being connected with the driver of described stepping motor, and described parameter of electric machine setting unit is computer.
Further, the step angle of described stepping motor is 0.9 degree.
Further, described motor is servomotor, and described main control unit is servo-driver, and described parameter of electric machine setting unit is computer.
Further, described circulator is annular crank.
Further, the rotational angle range of described circulator is 0-180 degree.
Further, described electronic Polarization Controller also comprises:
Power supply, it is connected with each motor, main control unit and parameter of electric machine setting unit.
Compared with prior art, the utility model rotates by the circulator of Electric Machine Control annular polarization controller, overcome that manual type Polarization Controller control precision is low, loss is large, inefficient shortcoming, can make light laser produce stable multiwavelength laser output.
Brief description of the drawings
Fig. 1: the electronic Polarization Controller composition schematic diagram that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only for explaining the utility model, and be not used in restriction the utility model.
As an example of tricyclic Polarization Controller example, the utility model is described below.It should be noted that the utility model not only can be used for tricyclic Polarization Controller, can also be used for other annular polarization controllers.Shown in Fig. 1, this electronic Polarization Controller is in fact improved on the basis of traditional three annular polarization controllers.Particularly, this electronic Polarization Controller comprises three annular polarization controllers, and three circulators 3 of this three annular polarizations controller connect respectively a motor 2, control its rotation by motor 2 separately.Each motor 2 connects respectively a main control unit 4, and main control unit 4 is connected with parameter of electric machine setting unit 5.Parameter of electric machine setting unit 5 is for the rotational parameters of each motor 2 is set, and main control unit 4 rotates for the each motor 2 of rotational parameters control of each motor 2 of arranging according to parameter of electric machine setting unit 5.
Motor 2 adopts stepping motor, and its step angle is 0.9 degree.Main control unit 4 comprises single-chip microcomputer, and this single-chip microcomputer is connected with stepping motor by the driver of stepping motor.Computer, as parameter of electric machine setting unit 5, arranges the rotational parameters of each stepping motor by single-chip microcomputer, comprise rotational angle, speed etc.Single-chip microcomputer sends to the rotational parameters of each stepping motor good computer installation the driver of corresponding stepping motor, and the driver of each stepping motor rotates according to the each stepping motor of the rotational parameters control receiving again.
In addition, motor 2 also can adopt servomotor, and main control unit 4 adopts servo-driver, and computer, as parameter of electric machine setting unit 5, is arranged the rotational parameters of each servomotor and controlled each servomotor and rotate by servo-driver.
Power supply (attached not shown) is connected with each motor 2, main control unit 4 and parameter of electric machine setting unit 5 respectively, is used to it to provide work required electric energy.Circulator 3 adopts annular crank, and it can rotate within the scope of 0-180 degree.In the time optical fiber being carried out to polarization state adjusting, optical fiber is wrapped on three annular cranks successively, and exports from the other end.In tricyclic Polarization Controller, three annular cranks are equivalent to quarter-wave plate, half-wave plate, quarter-wave plate successively along optical path direction (shown in Fig. 1 arrow).The number of turns that optical fiber is wound around on annular crank can be carried out flexible according to differences such as the size of annular crank, optical fiber specifications.
This electrodynamic deflection controller has three kinds of mode of operations:
Stochastic model: each torus crank rotates at random between 0-180 degree, and the rotation between each torus crank is independent of each other;
Angle mode: each torus crank turns to the angle of setting;
Scan pattern: each torus crank carrys out flyback retrace and rotates between a series of angles of setting.
In above three kinds of mode of operations, the rotating speed of each torus crank can be controlled by stepping motor separately.In addition, in scan pattern, time of staying when computer can also be arranged each stepping motor and turned to set angle by single-chip microcomputer, thereby the time of staying when each torus crank is set indirectly turns to set angle.
This electronic Polarization Controller utilizes Polarization Controller as wavelength tuning device, can realize the multi-wavelength output of fiber laser by nonlinear polarization rotation effect.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (8)
1. an electronic Polarization Controller, comprises annular polarization controller, it is characterized in that, described annular polarization controller has three circulators; Each circulator of described annular polarization controller connects respectively a motor, by its rotation of Electric Machine Control separately.
2. electronic Polarization Controller as claimed in claim 1, is characterized in that, also comprises:
Main control unit, is connected with described motor, for controlling described electric machine rotation;
Parameter of electric machine setting unit, is connected with described main control unit, for the rotational parameters of described motor is set.
3. electronic Polarization Controller as claimed in claim 2, is characterized in that, described motor is stepping motor, and described main control unit comprises the single-chip microcomputer being connected with the driver of described stepping motor, and described parameter of electric machine setting unit is computer.
4. electronic Polarization Controller as claimed in claim 3, is characterized in that, the step angle of described stepping motor is 0.9 degree.
5. electronic Polarization Controller as claimed in claim 2, is characterized in that, described motor is servomotor, and described main control unit is servo-driver, and described parameter of electric machine setting unit is computer.
6. electronic Polarization Controller as claimed in claim 1, is characterized in that, described circulator is annular crank.
7. electronic Polarization Controller as claimed in claim 1, is characterized in that, the rotational angle range of described circulator is 0-180 degree.
8. electronic Polarization Controller as claimed in claim 2, is characterized in that, also comprises:
Power supply, it is connected with each motor, main control unit and parameter of electric machine setting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109969.8U CN203967502U (en) | 2014-03-12 | 2014-03-12 | Electronic Polarization Controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109969.8U CN203967502U (en) | 2014-03-12 | 2014-03-12 | Electronic Polarization Controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967502U true CN203967502U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420109969.8U Expired - Fee Related CN203967502U (en) | 2014-03-12 | 2014-03-12 | Electronic Polarization Controller |
Country Status (1)
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| CN (1) | CN203967502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-03-12 CN CN201420109969.8U patent/CN203967502U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160620 Address after: 518000 seventh D-601, linen Industrial Zone, Xixiang street, Baoan District, Guangdong, Shenzhen, second Patentee after: Link Electric (Shenzhen) Co., Ltd. Address before: 518000 Nanhai Road, Guangdong, Shenzhen, No. 3688, No. Patentee before: Shenzhen University |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20190312 |
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| CF01 | Termination of patent right due to non-payment of annual fee |