CN106154424A - A kind of dual-port faraday rotation mirror and circulator - Google Patents
A kind of dual-port faraday rotation mirror and circulator Download PDFInfo
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- CN106154424A CN106154424A CN201610846232.8A CN201610846232A CN106154424A CN 106154424 A CN106154424 A CN 106154424A CN 201610846232 A CN201610846232 A CN 201610846232A CN 106154424 A CN106154424 A CN 106154424A
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- optical fibre
- polarization maintaining
- maintaining optical
- fibre head
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
- G02B6/2766—Manipulating the plane of polarisation from one input polarisation to another output polarisation, e.g. polarisation rotators, linear to circular polarisation converters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention relates to fiber optic communication field, be specifically related to a kind of dual-port faraday rotation mirror and circulator.Light beam is incident from one end of dual-port faraday rotation mirror, other end outgoing after polarization direction deflection 45 degree, and transmit to subsequent reflection formula light path system, it is again introduced into dual-port faraday rotation mirror after reflection, polarization direction deflects 45 degree again, and from former entry port outgoing, the polarization direction of light beam can be produced the deflection of 90 degree, it is achieved that with the working effect as single port faraday rotation mirror.The light path of the present invention uses symmetric design, the directionless selectivity of optic path, two ends all can be as the incidence end of light beam, not only eliminate the impact on faraday rotation mirror of dispersion and temperature characterisitic, achieve the working effect as single port faraday rotation mirror, and may be mounted at light path stage casing, it is adaptable to different light path systems.
Description
Technical field
The present invention relates to fiber optic communication field, be specifically related to a kind of dual-port faraday rotation mirror and circulator.
Background technology
The optical fiber sensing technology application in fields such as space flight and aviation, navigation inertial navigations is more and more wider.The inclined device of substantial amounts of guarantor should
Being used in optical fibre gyro, fibre optic hydrophone etc. and utilize in the sensor that polarization interference principle makes, Faraday rotator is exactly crucial
The inclined device of guarantor, mainly the polarization direction to light beam realizes 90 degree of deflections.
The inclined faraday rotation mirror of guarantor of single-port mode it is substantially, its structure and light path schematic diagram such as Fig. 1 institute on market
Showing, comprising optical fiber head 101, collimator 102 Faraday rotator 103 and reflecting mirror 104, incident illumination enters from optical fiber head 101, depends on
Secondary passing through 102,103, polarization direction produces 45 degree deflections, is then passed through backtracking after reflecting mirror 104, after 103, polarizes
Direction produces 45 degree of deflections again, after optical fiber head 101 exports, due to the light nonreciprocity of Faraday rotator, emergent light with
Incident illumination is compared, and polarization direction creates the deflection of 90 degree altogether.Chinese patent CN20141046502, CN201310646181,
The faraday rotation mirror scheme that CN105589135A etc. announce is all based on single port principle design, solves Faraday rotation
The dispersion of mirror and temperature characterisitic, this type of faraday rotation mirror can be only applied to the end of light path design system, and for optical fiber top
Spiral shell, sensor-based system based on the reflection of Bragg grating wavelength, fiber optic loop, Bragg grating inherently single port access device, need
Faraday rotation mirror to be placed in light path stage casing, and traditional single port faraday rotation mirror cannot be applied.
Summary of the invention
Can only be placed on the application drawback of optical line terminal for existing single port faraday rotation mirror, the present invention proposes one
Plant dual-port faraday rotation mirror, designed by the mirror imageization of transmission light path, incident and outgoing polarization maintaining optical fibre head is reasonably set
Angle between polarisation transfer axle, can be with flexible Application any position in the optical path, and light beam is from dual-port faraday rotation mirror
One end incident, polarization direction deflect 45 degree after other end outgoing, and transmit to subsequent reflection formula light path system, after reflection
Being again introduced into dual-port faraday rotation mirror, polarization direction deflects 45 degree again, and from former entry port outgoing, can not be by color
Dissipate and the impact of temperature characterisitic, the deflection to the polarization direction generation 90 degree of light beam, it is achieved that with single port faraday rotation mirror
Same working effect.The light path of the present invention uses symmetric design, and the directionless selectivity of optic path, two ends all can be as light beam
Incidence end.
The technical scheme is that
A kind of dual-port faraday rotation mirror, including the first polarization maintaining optical fibre head being sequentially connected with, first collimator, faraday
Rotator, the second collimator, the second polarization maintaining optical fibre head；Light is incident from the first polarization maintaining optical fibre head or the second polarization maintaining optical fibre head；Described
Faraday rotator is 45 degree to the anglec of rotation of the polarization direction of light, the primary optical axis direction of described first polarization maintaining optical fibre head and the
The primary optical axis direction of two polarization maintaining optical fibre heads is in angle of 45 degrees.
As preferably, light is when the first polarization maintaining optical fibre head incidence, and the exit end of described second polarization maintaining optical fibre head accesses follow-up
Single port reflection type optical path system.
As preferably, light is when the second polarization maintaining optical fibre head incidence, and the exit end of described first polarization maintaining optical fibre head accesses follow-up
Single port reflection type optical path system.
As preferably, described follow-up single port reflection type optical path system is fiber optic loop or Bragg fiber grating.For optical fiber
During gyro, follow-up single port reflection type optical path system is fiber optic loop；For the sensor-based system reflected based on Bragg grating wavelength
Time, follow-up single port reflection type optical path system is Bragg fiber grating.
In the present invention, the transmission path of light beam is: the first polarization maintaining optical fibre head constant when its polarization direction of light beam collateral security enters
When penetrating, initially enter the first collimator making divergent beams collimation be collimated light beam, enter Faraday rotation through first collimator
Device, the polarization direction of light beam turns clockwise 45 degree, and light beam continues transmission, enters the second collimator and the second polarization maintaining optical fibre head,
And entered in follow-up single port reflection type optical path system by the second polarization maintaining optical fibre head；Light beam is from follow-up single port reflecting light
After the systematic reflection of road, sequentially passing through the second polarization maintaining optical fibre head, the second collimator, Faraday rotator, the polarization direction of light beam is again
Secondary turn clockwise 45 degree, through first collimator, the first polarization maintaining optical fibre head output.Light beam is from inciding the overall process of outgoing, partially
Direction corotating of shaking 90 degree, not only eliminates the impact on faraday rotation mirror of dispersion and temperature characterisitic, it is achieved that with single-ended
The working effect that mouth faraday rotation mirror is same, and may be mounted at light path stage casing, it is adaptable to different light path systems.Light beam
When the second polarization maintaining optical fibre head incidence, owing to the light path of the present invention uses symmetric design, the transmission path of light beam and aforesaid paths
Similar.
A kind of circulator based on above-mentioned dual-port faraday rotation mirror, including the first polarization maintaining optical fibre head being sequentially connected with,
First collimator, Faraday rotator, the second collimator, the second polarization maintaining optical fibre head, Bragg fiber grating；Light is protected partially from first
Optical fiber head is incident, sequentially passes through first collimator, Faraday rotator, the second collimator, the second polarization maintaining optical fibre head, and transmission is extremely
Bragg fiber grating back reflection, then sequentially pass through the second polarization maintaining optical fibre head, the second collimator, Faraday rotator, the first collimation
Device, from the first polarization maintaining optical fibre head outgoing.
As preferably, described Bragg fiber grating is connected with described second polarization maintaining optical fibre head by optical fiber flange.
The dual-port faraday rotation mirror of the present invention, is designed by the mirror imageization of transmission light path, reasonably arrange incident and
Angle between outgoing polarization maintaining optical fibre head polarisation transfer axle, can be with flexible Application any position in the optical path, inclined to light beam
The direction that shakes produces the deflection of 90 degree, not only eliminates the impact on faraday rotation mirror of dispersion and temperature characterisitic, it is achieved that with list
The working effect that port faraday rotation mirror is same, and the dual-port faraday rotation mirror of the present invention can be arranged on light path
Stage casing, it is adaptable to different light path systems；The circulator based on dual-port faraday rotation mirror of the present invention, makes Faraday rotation
Mirror can apply to the sensing based on the reflection of Bragg optic fiber grating wavelength that traditional single port faraday rotation mirror cannot be applied
In the light path of system, relieve existing faraday rotation mirror and can be only applied to the limitation of light path design system end.
Accompanying drawing explanation
Fig. 1 is Faraday rotation mirror structure and the light path schematic diagram of prior art；
Fig. 2 is the structure of the dual-port faraday rotation mirror of the present invention and a kind of light path schematic diagram；
Fig. 3 is the structure of the dual-port faraday rotation mirror of the present invention and another kind of light path schematic diagram；
Fig. 4 is structure and the light path schematic diagram of circulator of the present invention.
In figure, 101: optical fiber head, 102: collimator, 103: Faraday rotator, 104: reflecting mirror, 201,301,401: the
One polarization maintaining optical fibre head, 202,302,402: first collimator, 203,303,403: Faraday rotator, 204,304,404: the second
Collimator, 205,305,405: the second polarization maintaining optical fibre heads, 206,306: follow-up single port reflection type optical path system, 406:Bragg
Fiber grating, 407: optical fiber flange.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1:
As in figure 2 it is shown, the dual-port faraday rotation mirror of the present embodiment, including the first polarization maintaining optical fibre head being sequentially connected with
201, first collimator 202, Faraday rotator the 203, second collimator the 204, second polarization maintaining optical fibre head 205；Light is protected from first
Optical fiber head 201 partially is incident；Wherein, the first polarization maintaining optical fibre head 201 and the second polarization maintaining optical fibre head 205 for transmitting beam and ensure it
Polarization direction is constant, and first collimator 202 and the second collimator 204 converge as collimated light beam for the light beam that will dissipate；Described
Faraday rotator 203 is 45 degree to the anglec of rotation of the polarization direction of light, the primary optical axis side of described first polarization maintaining optical fibre head 201
To the primary optical axis direction with the second polarization maintaining optical fibre head 205 in angle of 45 degrees.
In the present embodiment, the second polarization maintaining optical fibre head 205 is linked in follow-up single port reflection type optical path system 206, makes
The polarization direction of incident beam is only vertical polarization, and incident illumination is incident from the first polarization maintaining optical fibre head 201, enters the first collimation
Device 202, after making divergent beams become collimated light beam, enters Faraday rotator 203, and the polarization direction of light beam turns clockwise 45
Degree；Light beam continues transmission, enters the second collimator 204 and the second polarization maintaining optical fibre head 205, and by the second polarization maintaining optical fibre head 205
Enter in follow-up single port reflection type optical path system 206；Light beam from follow-up single port reflection type optical path system 206 reflect after,
Sequentially pass through second polarization maintaining optical fibre head the 205, second collimator 204, be again introduced into Faraday rotator 203, the polarization side of light beam
To again turning clockwise 45 degree, light beam polarization direction the most now becomes only horizontal polarization direction, the polarization of horizontal direction
Light exports through first collimator the 202, first polarization maintaining optical fibre head 201, and emergent light becomes 90 degree of angles with the polarization direction of incident illumination.
Embodiment 2:
As it is shown on figure 3, the dual-port faraday rotation mirror of the present embodiment, including the first polarization maintaining optical fibre head being sequentially connected with
301, first collimator 302, Faraday rotator the 303, second collimator the 304, second polarization maintaining optical fibre head 305；Light is protected from second
Optical fiber head 305 partially is incident；Wherein, the first polarization maintaining optical fibre head 301 and the second polarization maintaining optical fibre head 305 for transmitting beam and ensure it
Polarization direction is constant, and first collimator 302 and the second collimator 304 converge as collimated light beam for the light beam that will dissipate；Described
Faraday rotator 303 is 45 degree to the anglec of rotation of the polarization direction of light, the primary optical axis side of described first polarization maintaining optical fibre head 301
To the primary optical axis direction with the second polarization maintaining optical fibre head 305 in angle of 45 degrees.
In the present embodiment, the first polarization maintaining optical fibre head 301 is linked in follow-up single port reflection type optical path system 306, makes
The polarization direction of incident beam is only horizontal polarization direction, and incident illumination is incident from the quick shaft direction of the second polarization maintaining optical fibre head 305, enters
Entering the second collimator 304, after making divergent beams become collimated light beam, enter Faraday rotator 303, the polarization direction of light beam is suitable
Hour hands rotate 45 degree；Light beam continues transmission, enters first collimator 302 and the first polarization maintaining optical fibre head 301, and protects partially by first
Optical fiber head 301 enters in follow-up single port reflection type optical path system 306；Light beam is from follow-up single port reflection type optical path system
After 306 reflections, sequentially pass through the first polarization maintaining optical fibre head 301, first collimator 302, be again introduced into Faraday rotator 303, light
The polarization direction of bundle turns clockwise 45 degree again, and light beam polarization direction the most now becomes only vertical polarization, vertically
The polarized light in direction, through the second collimator 304, exports from the slow-axis direction of the second polarization maintaining optical fibre head 305, emergent light and incident illumination
Polarization direction become 90 degree of angles.
Embodiment 3:
As shown in Figure 4, the circulator based on dual-port faraday rotation mirror of the present embodiment, including first be sequentially connected with
Polarization maintaining optical fibre head 401, first collimator 402, Faraday rotator the 403, second collimator the 404, second polarization maintaining optical fibre head 405,
Bragg fiber grating 406.Wherein, the first polarization maintaining optical fibre head 401 and the second polarization maintaining optical fibre head 405 for transmitting beam and ensure
Its polarization direction is constant, and first collimator 402 and the second collimator 403 converge as collimated light beam, method for the light beam that will dissipate
Drawing rotator 403 for the polarization direction of light beam is rotated 45 degree, Bragg fiber grating 406 is for reflected wavelengths
Polarized light.
In the present embodiment, the polarization direction of incident beam is only vertical polarization, and light beam is from the first polarization maintaining optical fibre head 401
Slow-axis direction incident, sequentially pass through first collimator 402, Faraday rotator 403, polarization direction turns clockwise 45 degree,
Sequentially pass through second collimator the 404, second polarization maintaining optical fibre head 405 again, transmit to Bragg fiber grating 406 back reflection, reflect light
Sequentially pass through second polarization maintaining optical fibre head the 405, second collimator 404, Faraday rotator 403, polarization direction dextrorotation again
Turn 45 degree, by first collimator 402, from the quick shaft direction outgoing of the first polarization maintaining optical fibre head 401.
Bragg fiber grating 406 in the present embodiment is connected to the second polarization maintaining optical fibre head 405 by end optical fiber flange plate 407
On.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention,
Multiple amendment to these embodiments will be apparent from for those skilled in the art.
It should be appreciated that the application is intended to any modification of the present utility model, purposes or adaptations, this
A little modification, purposes or adaptations are followed the general principle of the present invention and include the undocumented the art of the present invention
In common knowledge or conventional techniques means.
Claims (5)
1. a dual-port faraday rotation mirror, it is characterised in that: include the first polarization maintaining optical fibre head, the first collimation being sequentially connected with
Device, Faraday rotator, the second collimator, the second polarization maintaining optical fibre head；Light is from the first polarization maintaining optical fibre head or the second polarization maintaining optical fibre head
Incident；Described Faraday rotator is 45 degree to the anglec of rotation of the polarization direction of light, the key light of described first polarization maintaining optical fibre head
The primary optical axis direction of direction of principal axis and the second polarization maintaining optical fibre head is in angle of 45 degrees.
2. a kind of dual-port faraday rotation mirror as claimed in claim 1, it is characterised in that: light enters from the first polarization maintaining optical fibre head
When penetrating, the exit end of described second polarization maintaining optical fibre head accesses follow-up single port reflection type optical path system.
3. a kind of dual-port faraday rotation mirror as claimed in claim 1, it is characterised in that: light enters from the second polarization maintaining optical fibre head
When penetrating, the exit end of described first polarization maintaining optical fibre head accesses follow-up single port reflection type optical path system.
4. a kind of dual-port faraday rotation mirror as described in claim 1 or 2 or 3, it is characterised in that: described follow-up single port
Reflection type optical path system is fiber optic loop or Bragg fiber grating.
5. a circulator based on the dual-port faraday rotation mirror according to any one of claim 1-3, it is characterised in that:
Including the first polarization maintaining optical fibre head being sequentially connected with, first collimator, Faraday rotator, the second collimator, the second polarization maintaining optical fibre
Head, Bragg fiber grating；Light is incident from the first polarization maintaining optical fibre head, sequentially pass through first collimator, Faraday rotator, second
Collimator, the second polarization maintaining optical fibre head, transmission to Bragg fiber grating back reflection, then sequentially pass through the second polarization maintaining optical fibre head, second
Collimator, Faraday rotator, first collimator, from the first polarization maintaining optical fibre head outgoing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610846232.8A CN106154424B (en) | 2016-09-23 | 2016-09-23 | A kind of dual-port faraday rotation mirror and circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610846232.8A CN106154424B (en) | 2016-09-23 | 2016-09-23 | A kind of dual-port faraday rotation mirror and circulator |
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| Publication Number | Publication Date |
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| CN106154424A true CN106154424A (en) | 2016-11-23 |
| CN106154424B CN106154424B (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610846232.8A Expired - Fee Related CN106154424B (en) | 2016-09-23 | 2016-09-23 | A kind of dual-port faraday rotation mirror and circulator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589490A (en) * | 2017-09-04 | 2018-01-16 | 中国电子科技集团公司第四十研究所 | A kind of push-pull type polarization rotation retarder and method for optical fibre interference |
| CN108490547A (en) * | 2018-04-12 | 2018-09-04 | 上海中科光纤通讯器件有限公司 | Line polarisation converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5546219A (en) * | 1994-03-03 | 1996-08-13 | Matsushita Electric Industrial Co., Ltd. | Optical circuit and light transmission system and method using the same |
| WO2006085650A1 (en) * | 2005-02-14 | 2006-08-17 | Namiki Seimitsu Houseki Kabushiki Kaisha | Wavelength monitoring device |
| US20090015843A1 (en) * | 2007-07-11 | 2009-01-15 | Demers Joseph R | Fiber optic gyroscope |
| CN105705907A (en) * | 2013-06-11 | 2016-06-22 | 姚晓天 | Energy-efficient optic gyroscope devices |
| CN105928501A (en) * | 2016-04-27 | 2016-09-07 | 西安中科华芯测控有限公司 | Integrated optical circuit structure fiber-optic gyroscope and work method thereof |
-
2016
- 2016-09-23 CN CN201610846232.8A patent/CN106154424B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5546219A (en) * | 1994-03-03 | 1996-08-13 | Matsushita Electric Industrial Co., Ltd. | Optical circuit and light transmission system and method using the same |
| WO2006085650A1 (en) * | 2005-02-14 | 2006-08-17 | Namiki Seimitsu Houseki Kabushiki Kaisha | Wavelength monitoring device |
| US20090015843A1 (en) * | 2007-07-11 | 2009-01-15 | Demers Joseph R | Fiber optic gyroscope |
| CN105705907A (en) * | 2013-06-11 | 2016-06-22 | 姚晓天 | Energy-efficient optic gyroscope devices |
| CN105928501A (en) * | 2016-04-27 | 2016-09-07 | 西安中科华芯测控有限公司 | Integrated optical circuit structure fiber-optic gyroscope and work method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589490A (en) * | 2017-09-04 | 2018-01-16 | 中国电子科技集团公司第四十研究所 | A kind of push-pull type polarization rotation retarder and method for optical fibre interference |
| CN107589490B (en) * | 2017-09-04 | 2019-08-23 | 中国电子科技集团公司第四十一研究所 | A kind of push-pull type polarization rotation retarder and method for optical fibre interference |
| CN108490547A (en) * | 2018-04-12 | 2018-09-04 | 上海中科光纤通讯器件有限公司 | Line polarisation converter |
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| CN106154424B (en) | 2019-02-22 |
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Granted publication date: 20190222 Termination date: 20210923 |