CN202837677U - Adjusting device for optical fiber polarization controller - Google Patents
Adjusting device for optical fiber polarization controller Download PDFInfo
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- CN202837677U CN202837677U CN 201220584837 CN201220584837U CN202837677U CN 202837677 U CN202837677 U CN 202837677U CN 201220584837 CN201220584837 CN 201220584837 CN 201220584837 U CN201220584837 U CN 201220584837U CN 202837677 U CN202837677 U CN 202837677U
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- optical fiber
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- polarization controller
- thumb wheel
- ring plate
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Abstract
The utility model discloses an adjusting device for an optical fiber polarization controller, and belongs to the technical field of optical fiber communication. The adjusting device for the optical fiber polarization controller comprises an optical fiber polarization controller, a standard scale dialing wheel, a locking clamp, an external panel and a base bracket. According to the adjusting device for the optical fiber polarization controller, provided by the utility model, the rotation of the standard scale dialing wheel which is exposed out of the external panel is adjusted to drive an annular optical fiber sheet to rotate, so that the external adjustment and the quantitative continuous control of the annular optical fiber sheet of the optical fiber polarization controller are realized, the repeatability and the adjusting efficiency of the optical fiber polarization controller are improved; and the locking clamp is adopted, so that the long-term working stability of the optical fiber polarization controller can be improved. Meanwhile, the adjusting device for the optical fiber polarization controller, provided by the utility model, further has the characteristics of saving the adjusting space and reducing the cost, and is in particular applicable to the control on an optical wave polarization state in a laboratory.
Description
Technical field
The utility model belongs to technical field of optical fiber communication, is specifically related to a kind of regulating device of optical fiber polarization controller.
Background technology
Developing rapidly of Networks of Fiber Communications proposes increasing requirement to the optical information processing technology, utilize the super fast response characteristic of nonlinear effect in optical fiber or the semiconductor material can realize the high-speed optical signal processing, yet all the polarization characteristic with light wave is relevant for nearly all full photoreduction process.For example, adopt polarisation multiplex system, the transmission capacity of optical fiber telecommunications system can be promoted one times.In Fibre Optical Communication Technology research, effectively control optical polarization, must be by means of various Polarization Controllers.At present, Polarization Controller commonly used has: the optical fiber polarization controller that utilizes the birefringence effect due to the fibre-optical bending to make, the mode squash type Polarization Control of making by extruding optical fiber, based on the wave plate formula Polarization Controller of birefringece crystal, utilize the effects such as electric light/magneto-optic and automatically controlled Polarization Controller of making etc.
In Polarization Controller commonly used, optical fiber polarization controller is a kind of of simple cheap, can realize the conversion of low-loss random polarization state, is widely used in the laboratory to the control of optical polarization.Optical fiber polarization controller is comprised of three adjustable optical fiber ring plates usually, is tied with a few circle optical fiber in each optical fiber ring plate; Three optical fiber ring plates produce birefringence effect under effect of stress, produce corresponding phase delay in orthogonal polarization orientation respectively, are equivalent to respectively quarter-wave plate, 1/2nd wave plates, quarter-wave plate.By adjusting the position angle of optical fiber ring plate, can realize the conversion from any input polarization to any output polarization state.Certainly, optical fiber polarization controller also can be comprised of two optical fiber ring plates.
Present optical fiber polarization controller, that mode by manual rotation optical fiber ring plate obtains different optical polarizations, have in actual applications following deficiency: (1) optical fiber polarization controller since do not have can reference scale marker, can only regulate with feeling during the spin fiber ring plate, regulate poor efficiency when repeating polarization state before, be difficult to all optical fiber ring plates are recalled to original position simultaneously, say nothing of and utilize optical fiber polarization controller to produce the polarization state of appointment; (2) place for a long time optical fiber polarization controller, its optical fiber ring plate (under heeling condition) can slowly depart from original position at Action of Gravity Field, more easily occur under this situation situation that screw fastener becomes flexible after repeatedly using, be difficult to keep in a long time the polarization state of fixing, thereby affect the performance of optical fiber telecommunications system; (3) optical fiber polarization controller is unsuitable for directly carrying out erecting of panel (the outside adjusting) by manually reversing to regulate the angle of optical fiber ring plate; When more or placement space was than comparatively dense when required optical fiber polarization controller, the twisted fiber ring plate of stretching out one's hand was easier to touch or interfere with other device, therefore often needed more chassis space.
Summary of the invention
The purpose of this utility model is in order to solve the problems referred to above of existing fiber Polarization Controller, to have proposed a kind of regulating device of optical fiber polarization controller.The optical fiber polarization controller regulating device that adopts the utility model to provide can improve the polarization state of optical fiber polarization controller and regulate efficient, improves the long-term working stability of optical fiber polarization controller; The regulating device of the optical fiber polarization controller that while the utility model provides also has to save regulates space and characteristics with low cost, is specially adapted to the laboratory to the control of optical polarization.
The technical solution of the utility model is:
A kind of regulating device of optical fiber polarization controller, comprises: optical fiber polarization controller, marking thumb wheel 3, exterior panel 4 and base support 5 to shown in Figure 5 at least such as Fig. 1.Described optical fiber polarization controller has at least 2, one optical fiber ring plates of an optical fiber ring plate and is equipped with a marking thumb wheel 3.Described marking thumb wheel 3 is the annulus wheel-like structure, the optical fiber ring plate 2 of optical fiber polarization controller is positioned at marking thumb wheel 3, the optical fiber ring plate plane, 2 place of optical fiber polarization controller and plane, marking thumb wheel 3 place are perpendicular, marking thumb wheel 3 interfixes with optical fiber polarization controller optical fiber ring plate 2, rotate marking thumb wheel 3 and can drive 2 rotations of optical fiber ring plate, and the rotation of marking thumb wheel 3 keeps overlapping with the rotation of optical fiber polarization controller optical fiber ring plate 2; Outer edge surface or the side of marking thumb wheel indicate scale, and scale unit is angular unit or long measure, in order to the anglec of rotation or the swing offset of demarcating the optical fiber ring plate.Described exterior panel 4 has rectangular window 41, and the part outer rim of marking thumb wheel is exposed from the rectangular window of exterior panel, is convenient to from the outside optical fiber ring plate of regulating of panel; Be carved with optical fiber ring plate rotation reading mark 42 near the appropriate location at rectangle opening edge on the perforate panel, be convenient to determine the anglec of rotation or the swing offset of optical fiber ring plate.Described base support 5 is used for fixing whole regulating device, keeps the position relationship between each parts in the regulating device.
The regulating device of the optical fiber polarization controller that the utility model provides also can be installed locking anchor clamps 6 at the perforate panel, is used for fixing marking thumb wheel and locks the polarization state of optical fiber polarization controller.Locking anchor clamps 6 can be in panel plane about fine setting, but can not move in marking thumb wheel 3 rotation directions, its contact arm is with the fixing marking thumb wheel (friction force between contact arm and the marking thumb wheel is so that the marking thumb wheel can be in fixing state) of the mode that clamps or press.
The regulating device of the optical fiber polarization controller that the utility model provides drives the optical fiber ring plate by the marking thumb wheel and rotates, and can easily and accurately control the anglec of rotation or the swing offset of optical fiber ring plate, thereby to the purpose of controlling guided wave polarization state in the optical fiber.The employing of locking anchor clamps can conveniently lock the output polarization state of optical fiber polarization controller, can effectively prevent optical fiber ring plate (under heeling condition) simultaneously owing to the polarization state that Action of Gravity Field causes changes, thereby greatly improve the job stability of fibre system.
According to marking thumb wheel physical dimension size, scale marker both can be positioned at the outer edge surface (being suitable for wider marking thumb wheel) of thumb wheel, also can be positioned at side (being suitable for the marking thumb wheel of wall thickness); Scale both can be used angle, also can identify with arc length degree etc., as long as can demarcate uniquely the position of rotation of optical fiber ring plate.The more specific location information of marking thumb wheel can read take panel cut out edge as reference data the scale on the marking thumb wheel, the various combination of these scale values is namely corresponding to different polarization states, thereby but the adjusting efficient of Effective Raise optical fiber polarization controller obtains rapidly required polarization state.Therefore, but the utlity model has the function of re-adjustments polarization state.
Base support is used for supporting optical fiber polarization controller on the one hand; Be that the turning axle that optical fiber polarisation is controlled the optical fiber ring plate is raised on the other hand, allow the marking thumb wheel freely rotate on maximum magnitude ground, necessary revolution space namely is provided.The marking thumb wheel can the original range of adjustment of limit fibre ring plate.
In sum, the utlity model has following beneficial effect:
1, the utility model has realized that by the marking thumb wheel outside of optical fiber polarization controller optical fiber ring plate is regulated and quantitative stepless control, has greatly improved the repeatability of optical fiber polarization controller and has regulated efficient.
2, by the locking anchor clamps are installed at the perforate panel, the optical fiber ring plate can be fixed on assigned address, avoid simultaneously the impact of conducting oneself with dignity, thereby make polarization state keep the longer time, help the long-term stability of fibre system.
3, the perforate panel had both played the effect of protection optical fiber polarization controller, and the method for outside adjusting polarization state is provided again, can directly be installed on the system equipment panel, also was suitable for consisting of independently apparatus, as consisting of Polarization Controller array etc.
When 4, the utility model promotes the adjusting function of optical fiber polarization controller greatly, also having and save to regulate space, characteristics that cost is low, is the ideal chose of simple and easy control optical polarization.
Description of drawings
Fig. 1 is the side structure schematic diagram of the optical fiber polarization controller regulating device that provides of the utility model.
Fig. 2 is the fixed relationship of three ring optical fiber polarization controllers and marking thumb wheel.
Fig. 3 is two kinds of scale positions on the marking thumb wheel.
Fig. 4 is a kind of locking anchor clamps schematic diagram.
Fig. 5 is the front schematic view of the perforate panel of locking anchor clamps.
Reference numeral: the 2nd, optical fiber ring plate, the 3rd, marking thumb wheel, the 4th, exterior panel, the 41st, the rectangular window on the panel, the 42nd, the reading mark on the panel, the 5th, fixed support, the 6th, locking anchor clamps.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment the utility model is further elaborated.
The Polarization Controller regulating device that the utility model proposes comprises: comprise at least: optical fiber polarization controller, marking thumb wheel, exterior panel and base support.Optical fiber polarization controller is comprised of three adjustable optical fiber ring plates usually, be tied with a few circle optical fiber in each optical fiber ring plate, stress birefrin can make and produce phase delay on the orthogonal polarization orientation, is equivalent to respectively quarter-wave plate, 1/2nd wave plates, quarter-wave plate.By adjusting the position angle of optical fiber ring plate, can realize the conversion from any input polarization to any output polarization state.The key of Polarization Control is to regulate the orientation of incident light polarization axle and wave plate main shaft, its control method is that the optical fiber ring plate is rotated as the axle center take bottom lever (optical fiber from lever inner by), this moment the optical fiber ring plate other end the space tracking of point for take lever and optical fiber ring plate contact portion as the center of circle, radius equals the circle of optical fiber ring plate diameter.With this circle actual make one can be around the thumb wheel of lever rotation, and its and optical fiber ring plate junction be fixed together, the turning axle of optical fiber ring plate vertically passes through marking thumb wheel center, just can regulate the attitude of optical fiber ring plate by rotating thumb wheel.Thumb wheel is marked with scale, relatively can draw the angle of optical fiber ring plate rotation with outside reference point, is called the marking thumb wheel with the thumb wheel of scale.Scale both can be at the outer edge surface of marking thumb wheel, also can be in the side of marking thumb wheel.Marking thumb wheel outshot from the perforate panel is beneficial to outside the adjusting.The locking anchor clamps are positioned on the panel, and when keeping Polarization Control when needing length, the contact arm of locking anchor clamps clamps or presses thumb wheel, utilizes friction force to fix.The locking anchor clamps can be in panel plane about fine setting, but can not move in marking thumb wheel rotation direction.
The below is specifically described the utility model with the concrete Polarization Controller regulating device of an example.
(1) side schematic view of this device as shown in Figure 1, one end and the marking thumb wheel of optical fiber ring plate (the thick line section of black among the figure) are fixed together, the other end is connected with lever, the turning axle of optical fiber ring plate (lever) vertically passes through marking thumb wheel center, optical fiber is assemblied in the lever, and lever and optical fiber ring plate are by stent support.Scale can be at marking thumb wheel outer edge surface, also can be in the side, and calibration system is positioned at the outer edge surface of regulating annulus in this example.The rectangular window of the outstanding panel of part marking thumb wheel, and remainder is inside, can protect better Polarization Controller like this.Rotation marking thumb wheel has namely been adjusted the position angle of optical fiber ring plate, and the angle that turns over is read by the scale on the marking thumb wheel, and panel provides the benchmark of reading.The locking anchor clamps are above the marking thumb wheel, and when the marking thumb wheel was adjusted to suitable position, the operation stationary installation overcame the impact that deadweight brings with optical fiber ring plate locking position with this, thereby realize long polarization state control.
(2) position relationship of marking thumb wheel and optical fiber ring plate as shown in Figure 2, the optical fiber ring plate is take lever as turning axle, an end and marking thumb wheel are fixed, the turning axle of optical fiber ring plate is with the disk of vertical marking thumb wheel, and the center of circle by the marking thumb wheel.
(3) scale of marking thumb wheel as shown in Figure 3, its outer edge surface or side are marked with scale, come the position of unique demarcation optical fiber ring plate, the unit of scale can be the unit of angle or length etc.Regulate the rotation that the marking thumb wheel just can drive the optical fiber ring plate, change the position angle of optical fiber ring plate, thereby reach the purpose of guided wave polarization state in the control optical fiber.In this example, scale is positioned at the outer edge surface of marking thumb wheel, take angle as unit.The anglec of rotation is defined as the angle of optical fiber ring plate and surface level, and reference point is pointed on the marking thumb wheel 0 ° during optical fiber ring plate level, and reading is exactly the anglec of rotation of optical fiber ring plate reality when rotating like this marking thumb wheel.
(4) the locking anchor clamps lock anchor clamps as shown in Figure 4 by two contact arms in this example, and removable baffle plate two parts form, and are installed on the exterior panel, are positioned at outstanding marking thumb wheel top.Contact arm fits together with the form of common clip, the contact arm of anchor clamps is with the fixing marking thumb wheel of the mode that clamps, friction force between contact arm and the marking thumb wheel is so that the marking thumb wheel can be in fixing state, contact arm can be in panel plane about fine setting, but can not move in marking thumb wheel rotation direction.Removable baffle plate can move up and down in panel, and be used for loosening and clamping of control contact arm: move down baffle plate and block the contact arm rear end, make it and can not freely open, thereby the contact arm front end separates with the marking thumb wheel, the marking thumb wheel can freely be stirred; On move baffle plate and make it to separate with the contact arm rear end, the contact arm front end closes up and clamps the marking thumb wheel, thereby has realized the locking of Polarization Control.
(5) front schematic view of the panel of locking anchor clamps as shown in Figure 5, a part of marking thumb wheel is outstanding from panel cut out, the locking anchor clamps are fixed in the panel that is positioned at marking thumb wheel top.The outer marking thumb wheel of the outstanding perforate panel of rotation can be regulated the angle of optical fiber ring plate, the mark (datum line) of reading on the panel is in the surface level at place, the marking thumb wheel center of circle, and the scale value on the datum line marking thumb wheel pointed is exactly the anglec of rotation of optical fiber ring plate.Certainly, the contact arm of locking anchor clamps also can be used as the reference point.When needing to keep Polarization Control when long, get final product the marking thumb wheel is fixing with the locking anchor clamps.
The advantage of the optical fiber polarization controller that the utility model is relatively traditional is: (1) this device has realized that by the marking thumb wheel outside of optical fiber polarization controller optical fiber ring plate sheet is regulated and quantitative stepless control, has greatly improved the repeatability of optical fiber polarization controller and has regulated efficient.(2) by the locking anchor clamps are installed at the perforate panel, optical fiber ring plate sheet can be fixed on assigned address, avoid simultaneously the impact of conducting oneself with dignity, thereby make polarization state keep the longer time, help the long-term stability of fibre system.(3) the perforate panel had both played the effect of protection optical fiber polarization controller, and the method for outside adjusting polarization state is provided again, can directly be installed on the system equipment panel, also was suitable for consisting of independently apparatus, as consisting of Polarization Controller array etc.When (4) this device promotes the adjusting function of optical fiber polarization controller greatly, also having and save to regulate space, characteristics that cost is low, is the ideal chose of simple and easy control optical polarization.
Those of ordinary skill in the art should recognize; embodiment described here is in order to help those of ordinary skills to understand principle of the present utility model, should to be understood to that protection domain of the present utility model is not limited to such special statement and examples of implementation.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not break away from the utility model essence according to disclosed these technology enlightenments of the utility model, and these distortion and combination are still in protection domain of the present utility model.
Claims (2)
1. the regulating device of an optical fiber polarization controller is characterized in that, comprises at least: optical fiber polarization controller, marking thumb wheel (3), exterior panel (4) and base support (5); Described optical fiber polarization controller has an optical fiber ring plate (2) at least, and an optical fiber ring plate is equipped with a marking thumb wheel (3); Described marking thumb wheel (3) is the annulus wheel-like structure, the optical fiber ring plate (2) of optical fiber polarization controller is positioned at marking thumb wheel (3), optical fiber ring plate (2) plane, place and marking thumb wheel (3) plane, place of optical fiber polarization controller are perpendicular, marking thumb wheel (3) interfixes with optical fiber polarization controller optical fiber ring plate (2), rotate marking thumb wheel (3) and can drive optical fiber ring plate (2) rotation, and the rotation of marking thumb wheel (3) keeps overlapping with the rotation of optical fiber polarization controller optical fiber ring plate (2); Outer edge surface or the side of marking thumb wheel indicate scale, and scale unit is angular unit or long measure, in order to the anglec of rotation or the swing offset of demarcating the optical fiber ring plate; Described exterior panel (4) has rectangular window (41), and the part outer rim of marking thumb wheel is exposed from the rectangular window of exterior panel, is convenient to from the outside optical fiber ring plate of regulating of panel; Be carved with optical fiber ring plate rotation reading mark (42) near the appropriate location at rectangle opening edge on the perforate panel, be convenient to determine the anglec of rotation or the swing offset of optical fiber ring plate; Described base support (5) is used for fixing whole regulating device, keeps the position relationship between each parts in the regulating device.
2. the regulating device of optical fiber polarization controller according to claim 1 is characterized in that, the regulating device of described optical fiber polarization controller also comprises locking anchor clamps (6); Described locking anchor clamps (6) are fixed on the exterior panel (4), externally in the panel about fine setting, but can not move in marking thumb wheel (3) rotation direction, its contact arm is with the fixing marking thumb wheel of the mode that clamps or press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584837 CN202837677U (en) | 2012-11-08 | 2012-11-08 | Adjusting device for optical fiber polarization controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584837 CN202837677U (en) | 2012-11-08 | 2012-11-08 | Adjusting device for optical fiber polarization controller |
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| Publication Number | Publication Date |
|---|---|
| CN202837677U true CN202837677U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220584837 Expired - Lifetime CN202837677U (en) | 2012-11-08 | 2012-11-08 | Adjusting device for optical fiber polarization controller |
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| Country | Link |
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| CN (1) | CN202837677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944930A (en) * | 2012-11-08 | 2013-02-27 | 电子科技大学 | Adjusting device of optical fiber polarization controller |
| CN108255229A (en) * | 2017-12-18 | 2018-07-06 | 广州亿航智能技术有限公司 | A kind of thumb wheel structure of unmanned controller |
-
2012
- 2012-11-08 CN CN 201220584837 patent/CN202837677U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944930A (en) * | 2012-11-08 | 2013-02-27 | 电子科技大学 | Adjusting device of optical fiber polarization controller |
| CN108255229A (en) * | 2017-12-18 | 2018-07-06 | 广州亿航智能技术有限公司 | A kind of thumb wheel structure of unmanned controller |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20140702 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20140702 |
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| RGAV | Abandon patent right to avoid regrant |