CN110208969A - A kind of optical circulator - Google Patents
A kind of optical circulator Download PDFInfo
- Publication number
- CN110208969A CN110208969A CN201810166995.7A CN201810166995A CN110208969A CN 110208969 A CN110208969 A CN 110208969A CN 201810166995 A CN201810166995 A CN 201810166995A CN 110208969 A CN110208969 A CN 110208969A
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- wave plate
- faraday rotator
- polarization
- light
- wedge piece
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- 230000003287 optical effect Effects 0.000 title claims abstract description 65
- 230000010287 polarization Effects 0.000 claims abstract description 100
- 239000013078 crystal Substances 0.000 claims abstract description 52
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910009372 YVO4 Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- 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
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/095—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
- G02F1/0955—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure used as non-reciprocal devices, e.g. optical isolators, circulators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses a kind of optical circulators, including the double-fiber collimator being set in sequence along optical path, first polarization spectro combined prism, first half-wave plate, second half-wave plate, first Faraday rotator, first birefringece crystal angle of wedge piece, second birefringece crystal angle of wedge piece, second Faraday rotator, third half-wave plate, 4th half-wave plate, second polarization spectro combined prism and single optical fiber calibrator, the first polarization spectro combined prism, second polarization spectro combined prism is that two polarization splitting prisms or a polarization splitting prism are composed with a high reflection mirror, the present invention program carries out the light splitting and light combination of polarised light using the birefringece crystal (walk-off crystal) that PBS combined prism substitutes traditional circulator, greatly shorten the length of circulator, it can be widely applied in all kinds of optical modules, have Good application prospect, in addition its not only compact-sized but also assembly easy to produce.
Description
Technical field
The present invention relates to optical communication device field, especially a kind of optical circulator.
Background technique
Optical circulator is the important optical passive component in optical communication field, and traditional fiber optical circulator mainly uses birefringent crystalline substance
Body is as beam splitter, due to the light splitting limited angle of birefringece crystal, so that the length of birefringece crystal is generally partially long, simultaneously
Due to circulator structures complexity, number of elements is numerous, so that traditional circulator volume is relatively large, is difficult to meet optical communication net
The demand that optical element is increasingly minimized in network.
Recently as the increasingly developed of communication field, the optical device and module number for needing to use are more and more, light device
The integration and miniaturization of part becomes inevitable trend, especially in High Speeding Optical Transmitter-receiver Circuit, in order to reduce the complexity of link
Property, need to be realized that the transfer function of single fiber bi-directional, traditional circulator are difficult to encapsulate since dimension volume is larger with optical circulator
It is integrated into the shell of optical module.
Summary of the invention
The case where for the prior art, the purpose of the present invention is to provide a kind of reliable, function admirables, compact-sized implemented
Optical circulator.
In order to realize above-mentioned technical purpose, the technical solution adopted by the present invention are as follows:
A kind of optical circulator comprising double-fiber collimator, the first polarization spectro combined prism, first being set in sequence along optical path
Half-wave plate, the second half-wave plate, the first Faraday rotator, the first birefringece crystal angle of wedge piece, the second birefringece crystal angle of wedge piece,
Second Faraday rotator, third half-wave plate, the 4th half-wave plate, the second polarization spectro combined prism and single optical fiber calibrator, institute
The first polarization spectro combined prism, the second polarization spectro combined prism stated are two polarization splitting prisms or a polarization point
Light prism is composed with a high reflection mirror, when light enters from the wherein Single port of double-fiber collimator, sequentially by first
Polarization spectro combined prism, the first half-wave plate, the second half-wave plate, the first Faraday rotator, the first birefringece crystal angle of wedge piece,
Second birefringece crystal angle of wedge piece, the second Faraday rotator, third half-wave plate, the 4th half-wave plate and the combination of the second polarization spectro
After prism, exported by single optical fiber calibrator, conversely, after light enters from single optical fiber calibrator, by the another of double-fiber collimator
Port output.
Further, the first birefringece crystal angle of wedge piece, the second birefringece crystal angle of wedge piece be single angle of wedge piece or
Folding wedge cornual plate constitutes circulator by will be bonded between the first birefringece crystal angle of wedge piece and the second birefringece crystal angle of wedge piece
By generating certain angle of the crossing after a combination thereof body, the angle and double-fiber collimator dual-beam are handed over for loop segments, O light and E light
Angle automatching is pitched, i.e. the intersecting angle of the two light beam is equal.
As one of embodiment, it is preferred that the optical axis of the first birefringece crystal angle of wedge piece is vertical with its plane of incidence,
The optical axis of second birefringece crystal angle of wedge piece is parallel with its plane of incidence and vertical with its bottom surface.
As another embodiment, it is preferred that the optical axis of the first birefringece crystal angle of wedge piece is vertical with its plane of incidence, the
The optical axis of two birefringece crystal angle of wedge pieces is parallel with its plane of incidence and forms angle with its bottom surface, and the angle is 45 °~
48°。
Further, first half-wave plate and the second half-wave plate be fixedly connected and for will by light polarization side
To rotation 45 °, first Faraday rotator for will by light polarization direction rotate 45 °, wherein the first half-wave
Piece and the second half-wave plate can be placed in front of or after the first Faraday rotator.
Further, the third half-wave plate and the 4th half-wave plate be fixedly connected and for will by light polarization side
To rotation 45 °, second Faraday rotator for will by light polarization direction rotate 45 °, wherein third half-wave
Piece and the 4th half-wave plate can be placed in front of or after the second Faraday rotator.
Further, first Faraday rotator or/and the second Faraday rotator are latching type faraday
Rotator.
Further, first Faraday rotator or/and the second Faraday rotator are non-latching type farad
Rotator is provided with one or more magnetic patch or magnet ring on the outside of the non-latching type Faraday rotator.
Further, rhombic prism is additionally provided between the second polarization spectro combined prism and single optical fiber calibrator.
Using above-mentioned technical solution, the invention has the benefit that the first polarization spectro of the present invention program combines rib
Although mirror and the second polarization spectro combined prism are to play light splitting and light combination as traditional birefringece crystal, first
Polarization spectro combined prism and the second polarization spectro combined prism in the case where realizing situation identical with tradition birefringece crystal effect,
Its length is shorter than traditional birefringece crystal, has apparent advantage, and can further realize small-sized encapsulated and single fiber
Collimator and double-fiber collimator can be located in same horizontal line, and circulator is enabled to easily facilitate production assembly.
Detailed description of the invention
The present invention is further elaborated with specific embodiment with reference to the accompanying drawing:
Fig. 1 is the side view of optical circulator embodiment 1 of the present invention；
Fig. 2 is the top view of optical circulator embodiment 1 of the present invention；
Fig. 3 is the side view of optical circulator embodiment 2 of the present invention；
Fig. 4 is the top view of optical circulator embodiment 2 of the present invention；
Fig. 5 is that the variation schematic diagram of 2 optical transport polarization state of port is arrived in the port 1 of optical circulator embodiment 2 of the present invention；
Fig. 6 is that the variation schematic diagram of 3 optical transport polarization state of port is arrived in the port 2 of optical circulator embodiment 2 of the present invention；
Fig. 7 is the side view of optical circulator embodiment 3 of the present invention.
Specific embodiment
Embodiment 1
As shown in the figures 1 and 2, optical circulator of the present invention includes the polarization point of double-fiber collimator 100, first being set in sequence along optical path
Light combined prism 101, the first half-wave plate 102, the second half-wave plate 103, the first Faraday rotator 104, the first birefringece crystal
Angle of wedge piece 105, the second birefringece crystal angle of wedge piece 106, the second Faraday rotator 107, third half-wave plate 108, the 4th half-wave
Piece 109, the second polarization spectro combined prism 110 and single optical fiber calibrator 111, wherein first polarization spectro combines rib
Mirror 101, the second polarization spectro combined prism 110 all can be polarization splitting prism 101a, a 110a and a high reflection mirrors
101b, 110b are composed, and can also change high reflection mirror 101b, 110b into polarization splitting prism, when light is from double fiber optic collimators
The wherein Single port of device 100 enters, and sequentially passes through the first polarization spectro combined prism 101, the first half-wave plate 102, the second half-wave
Piece 103, the first Faraday rotator 104, the first birefringece crystal angle of wedge piece 105, the second birefringece crystal angle of wedge piece 106,
After two Faraday rotators 107, third half-wave plate 108, the 4th half-wave plate 109 and the second polarization spectro combined prism 110, by list
Optical fiber collimator 111 exports, conversely, after light enters from single optical fiber calibrator 111, by the other end of double-fiber collimator 100
Mouth output.
Although the first polarization spectro combined prism and the second polarization spectro combined prism are as traditional birefringece crystal
It is to play the role of light splitting and light combination, but since the length of polarization spectro (PBS) combined prism is usually shorter, such as: length
P light and S light can be separated 0.5mm by the PBS combined prism of 0.5mm, and if traditional birefringece crystal (such as YVO4) length
Need 5mm length O light and E light could be separated 0.5mm, therefore, the length of PBS combined prism is more than traditional birefringece crystal
With apparent advantage.
As seen from Figure 2, the first birefringece crystal angle of wedge piece 105, the combination of the second birefringece crystal angle of wedge piece 106 are one
The loop segments of composition circulator are played, the optical axis of the first birefringece crystal angle of wedge piece 105 is perpendicular to the plane of incidence, the second birefringent crystalline substance
The optical axis of body angle of wedge piece 106 is parallel to the plane of incidence and, O light and E light vertical with the bottom surface of the second birefringece crystal angle of wedge piece 106
By generating certain angle of the crossing after a combination thereof body, which matches with 100 dual-beam intersecting angle of double-fiber collimator, i.e., and two
The intersecting angle of person's light beam is equal.
Wherein, first Faraday rotator and the first Faraday rotator can revolve for latching type faraday
Turn device or non-latching type Faraday rotator, when Faraday rotator is non-latching type Faraday rotator,
Outside is provided with one or more magnetic patch or magnet ring.
Embodiment 2
As shown in figure 3 or 4, the implementation structure of the present embodiment optical circulator is roughly the same with embodiment 1, wherein double fiber optic collimators
Device 200, the first polarization spectro combined prism 201, the first half-wave plate 202, the second half-wave plate 203, the first Faraday rotator
204, the first birefringece crystal angle of wedge piece 205, the second Faraday rotator 207, third half-wave plate 208, the 4th half-wave plate 209,
Second polarization spectro combined prism 210 and single optical fiber calibrator 211 are same as Example 1, the first polarization spectro combined prism
201, the second polarization spectro combined prism 210 all can be polarization splitting prism 201a, a 210a and a high reflection mirror
201b, 210b are composed, and high reflection mirror 201b, 210b can also be changed into polarization splitting prism, the present embodiment and embodiment 1
The difference is that the optical axis direction of the second birefringece crystal angle of wedge piece 206 is different from embodiment 1, the second birefringece crystal
The optical axis of angle of wedge piece 206 is parallel with its plane of incidence and forms angle with its bottom surface, and the angle is 45 °~48 °, embodiment
The loop segments light splitting position of 1 circulator is in the inclined-plane that two angle of wedge pieces are bonded (the i.e. left side of the second birefringece crystal angle of wedge piece
Light pass surface), and the loop segments of 2 circulator of the present embodiment light splitting position is on the right side of the second birefringece crystal in light pass surface.
In the implementation structure of embodiment 1 and embodiment 2, light propagates to port 2 and port 2 from port 1 and propagates to port 3
Optical path possessed optical transport polarization state variation in Fig. 2 or Fig. 4 label section is roughly the same.
Wherein, Fig. 5 is that optical transport polarization state of the optical circulator of the present invention from port 1 to port 2 changes schematic diagram；1. for warp
The incident light of port 1 is by the first PBS(polarization spectro) polarization direction of P light and S light, two polarization states are mutual after combined prism
It is orthogonal；2. for the light polarization state direction after the first half-wave plate and the second half-wave plate respectively of two polarization states, two light warps
Opposite direction has become the light of identical polarization direction after having rotated 45 degree；3. the light for two polarization states is revolved by the first faraday
Polarization state direction after turning device, two light are rotated in the counterclockwise direction 45 degree of light for having become horizontal polarization direction；4. being two
Polarization state direction of a light respectively after the first birefringece crystal angle of wedge piece and the second birefringece crystal angle of wedge piece remains unchanged,
Still for the light of horizontal polarization direction；5. being polarization state side of the light of two horizontal state of polarization after the second Faraday rotator
To the light of two horizontal state of polarization has been rotated in the counterclockwise direction 45 degree；6. the light for two polarization states passes through third half respectively
Polarization state direction after wave plate and the 4th half-wave plate, two light have become mutually orthogonal polarization after opposite direction has rotated 45 degree
The P light and S light of state, last P light and S light will be exported by the 2nd PBS combined prism light combination.
Fig. 6 is that optical transport polarization state of the optical circulator of the present invention from port 2 to port 3 changes schematic diagram；6. for by port 2
Incident light by the 2nd PBS(polarization spectro) polarization direction of P light and S light, two polarization states are mutually orthogonal after combined prism；
5. two light are through Xiang Fanfang for the light polarization state direction after third half-wave plate and the 4th half-wave plate respectively of two polarization states
To the light for having become identical polarization direction after having rotated 45 degree；4. being the light of two polarization states after the second Faraday rotator
Polarization state direction, two light are rotated counterclockwise 45 degree of light for having become vertical polarization direction；3. for two light point
Polarization state direction not after the second birefringece crystal angle of wedge piece and the first birefringece crystal angle of wedge piece remains unchanged, and is still perpendicular
Straight polarization direction；2. being polarization state direction of the light of two polarization and vertical polarizations after the first Faraday rotator, two vertical
The light of polarization state has been rotated in the counterclockwise direction 45 degree；1. the light for two polarization states passes through the first half-wave plate and the second half respectively
Polarization state direction after wave plate, two light have become the P light and S of mutually orthogonal polarization state after opposite direction has rotated 45 degree
Light, last P light and S light will be exported by the first PBS combined prism light combination.
Embodiment 3
Fig. 7 is the implementation structural schematic diagram of optical circulator embodiment 3 of the present invention, wherein double-fiber collimator 400, first polarizes
It is divided combined prism 401, the first half-wave plate 402, the second half-wave plate 403, the first Faraday rotator 404, the first birefringent crystalline substance
Body angle of wedge piece 405, the second birefringece crystal angle of wedge piece 406, the second Faraday rotator 407, third half-wave plate the 408, the 4th half
Wave plate 409, the second polarization spectro combined prism 410 and single optical fiber calibrator 411 are identical as embodiment 1 or embodiment 2, separately
Outside, the first polarization spectro combined prism 401, the second polarization spectro combined prism 410 all can be a polarization splitting prisms
401a, 410a are composed with high reflection mirror 401b, a 410b, and high reflection mirror 401b, 410b can also be changed into polarization point
Light prism, the present embodiment and embodiment 1 or embodiment 2 are the difference is that in the second polarization spectro combined prism 410 and list
A rhombic prism 412 is increased between optical fiber collimator 411, the effect of rhombic prism 412 is by turnover single fiber collimation
The position of 411 1 side beam of device makes single optical fiber calibrator 411 and double-fiber collimator 400 can be on position and same horizontal line, in this way
It is more convenient for the production assembly of circulator, and in the present embodiment structure, light propagates to port 2 and port 2 from port 1 and propagates to port
3 optical path corresponding embodiment 1 or 2 possessed optical transport polarization state in Fig. 2 or Fig. 4 label section changes also substantially phase
Together.
It is above-mentioned to disclose only presently preferred embodiments of the present invention, it should be noted that the deformation of embodiments disclosed herein
Be with change it is possible, for those skilled in the art embodiment replacement and equivalent various parts be
It is well known, it should be appreciated by the person skilled in the art that without departing from the spirit or essential characteristics of the invention, this hair
It is bright can in other forms, structure, arrangement, ratio realize.
Claims (10)
1. a kind of optical circulator, it is characterised in that: it includes the double-fiber collimator being set in sequence along optical path, the first polarization spectro
It is combined prism, the first half-wave plate, the second half-wave plate, the first Faraday rotator, the first birefringece crystal angle of wedge piece, second two-fold
Penetrate crystal angle of wedge piece, the second Faraday rotator, third half-wave plate, the 4th half-wave plate, the second polarization spectro combined prism and list
Optical fiber collimator, the first polarization spectro combined prism, the second polarization spectro combined prism are two polarization spectro ribs
Mirror or a polarization splitting prism are composed with a high reflection mirror, when light from the wherein Single port of double-fiber collimator into
Enter, sequentially passes through the first polarization spectro combined prism, the first half-wave plate, the second half-wave plate, the first Faraday rotator, first pair
Refracting crystal angle of wedge piece, the second birefringece crystal angle of wedge piece, the second Faraday rotator, third half-wave plate, the 4th half-wave plate and
After second polarization spectro combined prism, exported by single optical fiber calibrator, conversely, after light enters from single optical fiber calibrator, by double
The another port of optical fiber collimator exports.
2. a kind of optical circulator according to claim 1, it is characterised in that: the first birefringece crystal angle of wedge piece,
Second birefringece crystal angle of wedge piece is single angle of wedge piece or folding wedge cornual plate.
3. a kind of optical circulator according to claim 2, it is characterised in that: the optical axis of the first birefringece crystal angle of wedge piece with
Its plane of incidence is vertical, and the optical axis of the second birefringece crystal angle of wedge piece is parallel with its plane of incidence and vertical with its bottom surface.
4. a kind of optical circulator according to claim 2, it is characterised in that: the optical axis of the first birefringece crystal angle of wedge piece with
Its plane of incidence is vertical, and the optical axis of the second birefringece crystal angle of wedge piece is parallel with its plane of incidence and forms angle, institute with its bottom surface
The angle stated is 45 °~48 °.
5. a kind of optical circulator according to claim 1, it is characterised in that: first half-wave plate and the second half-wave plate
For be fixedly connected and for will by the polarization direction of light rotate 45 °, first Faraday rotator will be for will pass through
Light polarization direction rotate 45 °.
6. a kind of optical circulator according to claim 1, it is characterised in that: the third half-wave plate and the 4th half-wave plate
For be fixedly connected and for will by the polarization direction of light rotate 45 °, second Faraday rotator will be for will pass through
Light polarization direction rotate 45 °.
7. a kind of optical circulator according to claim 1, it is characterised in that: first Faraday rotator or/and
Second Faraday rotator is latching type Faraday rotator.
8. a kind of optical circulator according to claim 1, it is characterised in that: first Faraday rotator or/and
Second Faraday rotator is non-latching type Faraday rotator, the outside of the non-latching type Faraday rotator
It is provided with one or more magnetic patch or magnet ring.
9. a kind of optical circulator according to claim 1, it is characterised in that: the second polarization spectro combined prism and list
Rhombic prism is additionally provided between optical fiber collimator.
10. a kind of optical circulator, it is characterised in that: by the first half-wave plate of optical circulator described in one of claim 1 to 9,
Second half-wave plate is placed in after the first Faraday rotator, and third half-wave plate, the 4th half-wave plate are placed in the second Faraday rotator
Before.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166995.7A CN110208969A (en) | 2018-02-28 | 2018-02-28 | A kind of optical circulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166995.7A CN110208969A (en) | 2018-02-28 | 2018-02-28 | A kind of optical circulator |
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| CN110208969A true CN110208969A (en) | 2019-09-06 |
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| CN201810166995.7A Pending CN110208969A (en) | 2018-02-28 | 2018-02-28 | A kind of optical circulator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110933534A (en) * | 2019-11-20 | 2020-03-27 | 讯达康通讯设备(惠州)有限公司 | Wavelength selection directional optical router |
| CN113541796A (en) * | 2020-04-21 | 2021-10-22 | ***通信集团广东有限公司 | Optical fiber transmission system and optical fiber circulator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10186278A (en) * | 1996-12-19 | 1998-07-14 | Oyo Koden Kenkiyuushitsu:Kk | Optical circulator |
| JP2002122835A (en) * | 2000-10-12 | 2002-04-26 | Minebea Co Ltd | Faraday rotator |
| CN2524249Y (en) * | 2002-01-12 | 2002-12-04 | 福州康顺光通讯有限公司 | Optical circulator |
| CN2609001Y (en) * | 2003-03-06 | 2004-03-31 | 珠海保税区光联通讯技术有限公司 | Three-port circulator |
| CN202025159U (en) * | 2011-05-04 | 2011-11-02 | 福州高意通讯有限公司 | Optical circulator with compact structure |
| CN202693929U (en) * | 2012-07-19 | 2013-01-23 | 上海浦芮斯光电科技有限公司 | 2*2 high-speed mini-type all-solid magneto optical switch |
| CN203688845U (en) * | 2014-01-15 | 2014-07-02 | 福建华科光电有限公司 | Compact three-port light circulator |
| CN205787225U (en) * | 2016-01-12 | 2016-12-07 | 深圳纳莱特通信技术有限公司 | A kind of optical circulator |
| CN208092376U (en) * | 2018-02-28 | 2018-11-13 | 福州高意通讯有限公司 | A kind of optical circulator |
-
2018
- 2018-02-28 CN CN201810166995.7A patent/CN110208969A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10186278A (en) * | 1996-12-19 | 1998-07-14 | Oyo Koden Kenkiyuushitsu:Kk | Optical circulator |
| JP2002122835A (en) * | 2000-10-12 | 2002-04-26 | Minebea Co Ltd | Faraday rotator |
| CN2524249Y (en) * | 2002-01-12 | 2002-12-04 | 福州康顺光通讯有限公司 | Optical circulator |
| CN2609001Y (en) * | 2003-03-06 | 2004-03-31 | 珠海保税区光联通讯技术有限公司 | Three-port circulator |
| CN202025159U (en) * | 2011-05-04 | 2011-11-02 | 福州高意通讯有限公司 | Optical circulator with compact structure |
| CN202693929U (en) * | 2012-07-19 | 2013-01-23 | 上海浦芮斯光电科技有限公司 | 2*2 high-speed mini-type all-solid magneto optical switch |
| CN203688845U (en) * | 2014-01-15 | 2014-07-02 | 福建华科光电有限公司 | Compact three-port light circulator |
| CN205787225U (en) * | 2016-01-12 | 2016-12-07 | 深圳纳莱特通信技术有限公司 | A kind of optical circulator |
| CN208092376U (en) * | 2018-02-28 | 2018-11-13 | 福州高意通讯有限公司 | A kind of optical circulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110933534A (en) * | 2019-11-20 | 2020-03-27 | 讯达康通讯设备(惠州)有限公司 | Wavelength selection directional optical router |
| CN113541796A (en) * | 2020-04-21 | 2021-10-22 | ***通信集团广东有限公司 | Optical fiber transmission system and optical fiber circulator |
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