CN108919425A - A kind of optical circulator - Google Patents
A kind of optical circulator Download PDFInfo
- Publication number
- CN108919425A CN108919425A CN201810779688.6A CN201810779688A CN108919425A CN 108919425 A CN108919425 A CN 108919425A CN 201810779688 A CN201810779688 A CN 201810779688A CN 108919425 A CN108919425 A CN 108919425A
- Authority
- CN
- China
- Prior art keywords
- prism
- pbs
- pbs prism
- light
- exit facet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a kind of optical circulators, it is characterised in that：It includes four optical fiber mechanisms being set in sequence along optical path, the first PBS prism, optically-active mechanism, the 2nd PBS prism, reflecting mirror and prism of creeping；It is equipped in the first PBS prism and the 2nd PBS prism and its plane of incidence and exit facet is divided into two-part polarization beam splitter up and down, the upper surface and lower end surface of the first PBS prism and the 2nd PBS prism are additionally provided with high-reflecting film；It is set side by side above and below the reflecting mirror and prism of creeping and opposite with the exit facet of the 2nd PBS prism, the light that the exit facet of the 2nd PBS prism projects is received by reflecting mirror or prism of creeping, optical circulator of the present invention, which can be realized from the optical signal that input port inputs, can be transported to corresponding output port, the signal light that corresponding output port reversely inputs will not reach corresponding input port, and it is exported from other ports, to realize the inhibition isolation of signal light, optical signal is propagated according to the function that circulator transmits.
Description
Technical field
The present invention relates to the optical passive component field in light communication system, especially a kind of optical circulator.
Background technique
Optical circulator is the characteristics of non-reciprocity propagated in magneto-optical crystal using light, completes multiport input and output
Direction propagation, its effect are to transmit optical signal can only along defined port order.When optical signal is inputted from specified port
When, it can only be exported in the devices along defined port.When the change of the transmission sequence of optical signal, i.e., do not passed by specified port
When defeated, loss is very greatly, it can be achieved that the isolation of signal.
Due to this sequential delivery characteristic of optical circulator, it can be used for transmission positive in same root optical fiber and reversed
The optical signal of transmission separates, and can be applied among fiber optic communication, Fibre Optical Sensor and optical fiber testing system, keeps system structure simple
Change, performance improves.Optical circulator can also be used in optical time domain refiectometer, wavelength-division multiplex（WDM）, on dispersion compensation and optical signal
Load/downloading etc..
In optical circulator development, compact is pursued, the structure of low cost is Main Trends of The Development in recent years.
Summary of the invention
The case where for the prior art, the purpose of the present invention is to provide a kind of low in cost, isolation is high and can be simultaneous
Care for the optical circulator of compact-sized feature.
In order to realize that above-mentioned technical purpose, the technical solution adopted by the present invention be：
A kind of optical circulator comprising four optical fiber mechanisms being set in sequence along optical path, the first PBS prism, optically-active mechanism, second
PBS prism, reflecting mirror and prism of creeping；
Be equipped in the first PBS prism and the 2nd PBS prism by its plane of incidence and exit facet be divided into up and down it is two-part
Polarization beam splitter, the upper surface and lower end surface of the first PBS prism and the 2nd PBS prism are additionally provided with high-reflecting film；
The reflecting mirror is set side by side up and down with prism of creeping and, twoth PBS opposite with the exit facet of the 2nd PBS prism
The light that the exit facet of prism projects is received by reflecting mirror or prism of creeping.
Further, when the reflecting mirror is opposite with the 2nd prism exit facet top PBS, creep prism and the 2nd PBS rib
The lower part of mirror exit facet is opposite；When the reflecting mirror is opposite with the 2nd prism exit facet lower part PBS, creep prism and second
The top of PBS prism exit facet is opposite；
The prism of creeping is right-angle prism and its inclined-plane is opposite with the exit facet of the 2nd PBS prism.
Preferably, the reflecting mirror is glued or optical cement or in-depth optical cement in the 2nd PBS prism exit facet.
Preferably, the reflecting mirror is the highly reflecting films that plating is set to the 2nd PBS prism exit facet.
As one of embodiment of four optical fiber mechanisms, the four optical fiber mechanisms include one or four optical fiber collimators and
One four sides roof prism, the four sides roof prism are set between four optical fiber collimators and the first PBS prism.
As the another embodiment of four optical fiber mechanisms, the four optical fiber mechanisms are by four single optical fiber calibrator structures
At wherein one end of four single optical fiber calibrators is opposite with the first PBS prism.
Further, the optically-active mechanism includes set on the Faraday rotation between the first PBS prism and the 2nd PBS prism
Piece and wave plate.
Preferably, the Faraday rotation piece and wave plate are sequentially set along the first PBS prism to the 2nd PBS prism direction
It sets.
Preferably, the wave plate and Faraday rotation piece are sequentially set along the first PBS prism to the 2nd PBS prism direction
It sets.
Further, the plane of incidence of the first PBS prism and the 2nd PBS prism is towards identical.
Using above-mentioned technical solution, the device have the advantages that being：The present invention is by using four optical fiber mechanisms, and
One PBS prism, optically-active mechanism, the 2nd PBS prism, reflecting mirror and prism of creeping carry out combinations of pairs, and being formed has tight structure
Optical circulator, the optical circulator can be realized from input port input optical signal can be transported to corresponding output port, it is right
The signal light for answering output port reversely to input will not reach corresponding input port, and be exported from other ports, to realize
The inhibition of signal light is isolated, and optical signal is propagated according to the function that circulator transmits.
Detailed description of the invention
The present invention is further elaborated with reference to the accompanying drawings and detailed description：
Fig. 1 is the brief implementation structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the collimation emergent light of the port Port1, Port2, Port3, Port4 of four optical fiber collimators in structure shown in Fig. 1
Distribution briefly illustrate；
Fig. 3 is the brief configuration schematic diagram of the prism of creeping in structure shown in Fig. 1；
Fig. 4 is in structure shown in Fig. 1, and light propagates schematic diagram from the light that the end Port1 travels to reflecting mirror；
Fig. 5 is in structure shown in Fig. 1, and light travels to reflecting mirror from the end Port1, then the light at the end Port2 is traveled to by reflecting mirror
Propagate schematic diagram；
Fig. 6 is in structure shown in Fig. 1, and light propagates schematic diagram from the light that the end Port2 travels to prism of creeping；
Fig. 7 is in structure shown in Fig. 1, and light is input to the vertical view visual angle paths schematic diagram in prism of creeping from the end Port2；
Fig. 8 is in structure shown in Fig. 1, and light propagates schematic diagram from the light that prism of creeping travels to the end Port3；
Fig. 9 is in structure shown in Fig. 1, and light propagates schematic diagram from the light that the end Port3 travels to reflecting mirror；
Figure 10 is in structure shown in Fig. 1, and light travels to reflecting mirror from the end Port3, then the light at the end Port4 is traveled to by reflecting mirror
Propagate schematic diagram.
Specific embodiment
A kind of optical circulator comprising four optical fiber mechanisms being set in sequence along optical path, the first PBS prism, optically-active mechanism,
Two PBS prisms, reflecting mirror and prism of creeping；
Be equipped in the first PBS prism and the 2nd PBS prism by its plane of incidence and exit facet be divided into up and down it is two-part
Polarization beam splitter, the upper surface and lower end surface of the first PBS prism and the 2nd PBS prism are additionally provided with high-reflecting film；
The reflecting mirror is set side by side up and down with prism of creeping and, twoth PBS opposite with the exit facet of the 2nd PBS prism
The light that the exit facet of prism projects is received by reflecting mirror or prism of creeping.
Further, when the reflecting mirror is opposite with the 2nd prism exit facet top PBS, creep prism and the 2nd PBS rib
The lower part of mirror exit facet is opposite；When the reflecting mirror is opposite with the 2nd prism exit facet lower part PBS, creep prism and second
The top of PBS prism exit facet is opposite；
The prism of creeping is right-angle prism and its inclined-plane is opposite with the exit facet of the 2nd PBS prism.
Preferably, the reflecting mirror is glued or optical cement or in-depth optical cement in the 2nd PBS prism exit facet.
Preferably, the reflecting mirror is the highly reflecting films that plating is set to the 2nd PBS prism exit facet.
As one of embodiment of four optical fiber mechanisms, the four optical fiber mechanisms include one or four optical fiber collimators and
One four sides roof prism, the four sides roof prism are set between four optical fiber collimators and the first PBS prism.
As the another embodiment of four optical fiber mechanisms, the four optical fiber mechanisms are by four single optical fiber calibrator structures
At wherein one end of four single optical fiber calibrators is opposite with the first PBS prism.
Further, the optically-active mechanism includes set on the Faraday rotation between the first PBS prism and the 2nd PBS prism
Piece and wave plate.
Preferably, the Faraday rotation piece and wave plate are sequentially set along the first PBS prism to the 2nd PBS prism direction
It sets.
Preferably, the wave plate and Faraday rotation piece are sequentially set along the first PBS prism to the 2nd PBS prism direction
It sets.
Further, the plane of incidence of the first PBS prism and the 2nd PBS prism is towards identical.
Embodiment 1
As shown in Fig. 1 to one of 10, the present embodiment includes four optical fiber collimators 101 being set in sequence along optical path, four sides ridge rib
Mirror 102, the first PBS prism 103, Faraday rotation piece 104, wave plate 105, the 2nd PBS prism 106, reflecting mirror 107 and rib of creeping
Mirror 108；
It is equipped in the first PBS prism 103 and the 2nd PBS prism 106 and its plane of incidence and exit facet is divided into upper and lower two
Partial polarization beam splitter 1031,1061, the upper surface and lower end surface of the first the PBS prism 103 and the 2nd PBS prism 106
It is additionally provided with high-reflecting film；
The reflecting mirror 107 is opposite with 106 exit facet lower part of the 2nd PBS prism, creep prism 108 and the 2nd PBS prism 106
The top of exit facet is opposite, and the plane of incidence of the first PBS prism 103 and the 2nd PBS prism 106 is towards identical.
Four optical fiber collimators 101 have port Port1, Port2, Port3, Port4 for light propagation.
Schematic diagram is propagated from the light that the end Port1 travels to reflecting mirror as shown in figure 4, it illustrates light；Four fiber optic collimators
The directional light that the end the Port1 output of device 101 tilts down is angled to as horizon light, horizon light after four sides roof prism 102
After being first incident on the high-reflecting film of 103 lower end surface of the first PBS prism, it is reflected to the polarization beam splitter 1031 of the first PBS prism 103
On, incident light is divided into the orthogonal P light of polarization state and S light after polarization beam splitter 1031, wherein S light is through polarization spectro
Reflection occurs for film 1031 from the exit facet horizontal output of the first PBS prism 103, and P light is transmitted to the after polarization beam splitter 1031
The high-reflecting film of one PBS prism, 103 upper surface, it is then by high-reflecting film reflection and defeated from the exit facet level of the first PBS prism 103
Out；Its polarization state after Faraday rotation piece 104 and wave plate 105 remains unchanged the P light of horizontal output with S light, then incident
To the 2nd PBS prism 106, wherein S light is incident on the high-reflecting film of 106 lower end surface of the 2nd PBS prism, is then incident on second
It is reflected on the polarization beam splitter 1061 of PBS prism 106, then from the exit facet horizontal output of the 2nd PBS prism 106；P light
It goes out after being incident on the 2nd PBS prism 106 from 1061 horizontal transmission of polarization beam splitter；After the injection of the 2nd PBS prism 106
P light and S photosynthesis light beam are incident on reflecting mirror 107.
Reflecting mirror is traveled to from the end Port1 as shown in figure 5, it illustrates light, then travels to the light at the end Port2 by reflecting mirror
Line propagates schematic diagram；Light returns to the 2nd PBS prism 106 from reflecting mirror 107；Back to the light of the 2nd PBS prism 106, warp
It is divided into the orthogonal P light of polarization state and S light after crossing polarization beam splitter 1061, wherein S light occurs reflection and is incident on the 2nd PBS
After the high-reflecting film of 106 lower end surface of prism, from 106 horizontal output of the 2nd PBS prism, wherein P light is after from the 2nd PBS prism 106
It goes out from 1061 horizontal transmission of polarization beam splitter；The P light and S light of horizontal output pass through wave plate 105 and Faraday rotation piece 104
Afterwards, it is influenced by the nonreciprocal of Faraday rotation piece 104, wherein P polarization state, which is rotated by 90 °, becomes S light, the rotation of S polarization state
90 degree become P light；S light reflects after being incident on the high-reflecting film of 103 upper surface of the first PBS prism, is then incident on the first PBS
It is reflected on the polarization beam splitter 1031 of prism 103, then from 103 horizontal output of the first PBS prism, P light is through polarization spectro
Film 1031 transmits, and then from the first PBS103 horizontal output, finally, S light and P photosynthesis are a branch of；Light enters again after light combination
It is mapped on four sides roof prism 102, realizes and four optical fiber collimators 101 are incident at the light tilted down in horizon light school
The positive transmission of Port1 to Port2 is realized at the end Port2.
Fig. 6 is the light propagation schematic diagram that light travels to prism of creeping from the end Port2；Fig. 7 is that light is input to from the end Port2
The vertical view visual angle paths schematic diagram creeped in prism；The end the Port2 output of four optical fiber collimators 101 is acclivitous parallel
Light is angled to as horizontal direction after four sides roof prism 102, the first PBS prism 103 is then incident on, by the first PBS
It is divided into the orthogonal P light of polarization state and S light after the polarization beam splitter 1031 of prism 103, wherein P light is through polarization beam splitter
1031 transmit, and then from the 103 exit facet horizontal output of the first PBS prism, S light occurs instead after polarization beam splitter 1031
It penetrates, light reflects after being reflected into the high-reflecting film of the upper surface of the first PBS prism 103, then going out from the first PBS prism 103
Penetrate face horizontal output；The P light and S light of horizontal output its polarization state after Faraday rotation piece 104 and wave plate 105 are kept not
Become, is then again incident on the 2nd PBS prism 106, wherein P light, which is incident on the high-reflecting film of 106 lower end surface of the 2nd PBS prism, to be sent out
Raw reflection, level is defeated after the high-reflecting film reflection of 106 upper surface of the 2nd PBS prism is then transmitted to using polarization beam splitter 1051
Out, S light reflects after being incident on the polarization beam splitter 1061 of the 2nd PBS prism 106, and S light is reflected into the 2nd PBS prism 106
Upper surface high-reflecting film on, be then reflected into horizontal output again, the P light by the output of the 2nd PBS prism 106 and S light is just in this way
Synthesis light beam glancing incidence is to creeping on prism.Vertical view visual angle paths signal in prism of creeping as shown in Figure 7, water
The flat light for being incident on prism 108 of creeping, becomes vertical light after the first reflecting surface of prism 108 of creeping, certain altitude of creeping
Afterwards using the second reflecting surface of prism 108 of creeping, it is reflected into horizon light and is exported along 106 direction of the 2nd PBS prism.
Schematic diagram is propagated from the light that prism of creeping travels to the end Port3 if Fig. 8 is light；Light is uploaded from prism 108 of creeping
After the defeated high-reflecting film to 106 upper surface of the 2nd PBS prism, in transmission and reflection to polarization beam splitter 1061, it is then divided into partially
The orthogonal P light of polarization state and S light, wherein P light is transmitted on the high-reflecting film of 106 lower end surface of the 2nd PBS prism, then
From 106 horizontal output of the 2nd PBS prism, wherein S light through after the 2nd PBS prism 106 from polarization beam splitter 1061 reflection after water
It clears and penetrates；The P light and S light of horizontal output are after wave plate 105 and Faraday rotation piece 104, by the non-of Faraday rotation piece 104
Reciprocity influences, wherein P polarization state, which is rotated by 90 °, becomes S light, and S polarization state, which is rotated by 90 °, becomes P light；P light is incident on first
It is reflected on the high-reflecting film of 103 upper surface of PBS prism, is then incident on the polarization beam splitter 1031 of the first PBS prism 103 and occurs
Transmission, transmitted light is after the reflection of the high-reflecting film of 103 lower end surface of the first PBS prism from 103 horizontal output of the first PBS prism, S light warp
It is reflected after polarization beam splitter 1031, horizontal output after the high-reflecting film reflection of reflected light to 103 lower end surface of the first PBS prism,
It just synthesizes by the S light of the first PBS prism 103 with P light a branch of；Light after light combination is incident on four sides roof prism 102, is realized
Horizon light school is incident on to the end Port3 of four optical fiber collimators 101 at acclivitous light, realizes the forward direction of Port2 to Port3
Transmission.
Fig. 9 is the light propagation schematic diagram that light travels to reflecting mirror from the end Port3；The end Port3 of four optical fiber collimators 101
It exports the directional light that tilts down to be angled to after four sides roof prism 102 as horizon light, horizon light is first incident on the first PBS
After the high-reflecting film of 103 lower end surface of prism, it is reflected on the polarization beam splitter 1031 of the first PBS prism 103, by polarization spectro
Incident light is divided into the orthogonal P light of polarization state and S light after film 1031, wherein S light through polarization beam splitter 1031 occur reflection from
The exit facet horizontal output of first PBS prism 103, P light are transmitted to 103 upper end of the first PBS prism after polarization beam splitter 1031
Then the high-reflecting film in face is reflected by high-reflecting film and from the exit facet horizontal output of the first PBS prism 103；The P light of horizontal output with
S light its polarization state after Faraday rotation piece 104 and wave plate 105 remains unchanged, and is then incident on the 2nd PBS prism 106,
In, S light is incident on the high-reflecting film of 106 lower end surface of the 2nd PBS prism, is then incident on the polarization spectro of the 2nd PBS prism 106
It is reflected on film 1061, then from the exit facet horizontal output of the 2nd PBS prism 106；P light is incident on the 2nd PBS prism 106
It goes out afterwards from 1061 horizontal transmission of polarization beam splitter；P light after the injection of the 2nd PBS prism 106 enters with S photosynthesis light beam
It is mapped on reflecting mirror 107.
As shown in Figure 10, it illustrates light travels to reflecting mirror from the end Port3, then travels to the end Port4 by reflecting mirror
Light propagates schematic diagram；Light returns to the 2nd PBS prism 106 from reflecting mirror 107；Back to the light of the 2nd PBS prism 106,
It is divided into the orthogonal P light of polarization state and S light after polarization beam splitter 1061, wherein S light occurs reflection and is incident on second
After the high-reflecting film of 106 lower end surface of PBS prism, from 106 horizontal output of the 2nd PBS prism, wherein P light is passed through from the 2nd PBS prism
It goes out after 106 from 1061 horizontal transmission of polarization beam splitter；The P light and S light of horizontal output pass through wave plate 105 and Faraday rotation piece
After 104, nonreciprocal by Faraday rotation piece 104 influences, wherein P polarization state, which is rotated by 90 °, becomes S light, the rotation of S polarization state
Turning 90 degrees becomes P light；S light reflects after being incident on the high-reflecting film of 103 upper surface of the first PBS prism, is then incident on first
It is reflected on the polarization beam splitter 1031 of PBS prism 103, then from 103 horizontal output of the first PBS prism, P light is through polarization point
Light film 1031 transmits, and then from the first PBS103 horizontal output, finally, S light and P photosynthesis are a branch of；Light is again after light combination
It is incident on four sides roof prism 102, realizes and four optical fiber collimators 101 are incident at the light tilted down in horizon light school
The positive transmission of Port3 to Port4 is realized at the end Port4.
The above is the embodiment of the present invention, for the ordinary skill in the art, religion according to the present invention
Lead, without departing from the principles and spirit of the present invention all equivalent changes done according to scope of the present invention patent, repair
Change, replacement and variant, is all covered by the present invention.
Claims (10)
1. a kind of optical circulator, it is characterised in that：It includes four optical fiber mechanisms being set in sequence along optical path, the first PBS prism, rotation
Ray machine structure, the 2nd PBS prism, reflecting mirror and prism of creeping；
Be equipped in the first PBS prism and the 2nd PBS prism by its plane of incidence and exit facet be divided into up and down it is two-part
Polarization beam splitter, the upper surface and lower end surface of the first PBS prism and the 2nd PBS prism are additionally provided with high-reflecting film；
The reflecting mirror is set side by side up and down with prism of creeping and, twoth PBS opposite with the exit facet of the 2nd PBS prism
The light that the exit facet of prism projects is received by reflecting mirror or prism of creeping；
The prism of creeping is right-angle prism and its inclined-plane is opposite with the exit facet of the 2nd PBS prism.
2. a kind of optical circulator according to claim 1, it is characterised in that：The reflecting mirror goes out with the 2nd PBS prism
Penetrate face top it is opposite when, prism of creeping is opposite with the lower part of the 2nd PBS prism exit facet；The reflecting mirror and the 2nd PBS rib
When mirror exit facet lower part is opposite, prism of creeping is opposite with the top of the 2nd PBS prism exit facet.
3. a kind of optical circulator according to claim 2, it is characterised in that：The reflecting mirror is glued or optical cement or depth
Change optical cement in the 2nd PBS prism exit facet.
4. a kind of optical circulator according to claim 2, it is characterised in that：The reflecting mirror is that plating is set to the 2nd PBS
The highly reflecting films of prism exit facet.
5. a kind of optical circulator according to claim 1, it is characterised in that：The four optical fiber mechanisms include one or four optical fiber
Collimator and a four sides roof prism, the four sides roof prism are set between four optical fiber collimators and the first PBS prism.
6. a kind of optical circulator according to claim 1, it is characterised in that：The four optical fiber mechanisms are by four single fibers
Collimator is constituted, and wherein one end of four single optical fiber calibrators is opposite with the first PBS prism.
7. a kind of optical circulator according to claim 1, it is characterised in that：The optically-active mechanism includes being set to first
Faraday rotation piece and wave plate between PBS prism and the 2nd PBS prism.
8. a kind of optical circulator according to claim 7, it is characterised in that：The Faraday rotation piece and wave plate is along
One PBS prism to the 2nd PBS prism direction is set in sequence.
9. a kind of optical circulator according to claim 7, it is characterised in that：The wave plate and Faraday rotation piece is along
One PBS prism to the 2nd PBS prism direction is set in sequence.
10. a kind of optical circulator according to claim 1, it is characterised in that：The first PBS prism and the 2nd PBS rib
The plane of incidence of mirror is towards identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779688.6A CN108919425A (en) | 2018-07-16 | 2018-07-16 | A kind of optical circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779688.6A CN108919425A (en) | 2018-07-16 | 2018-07-16 | A kind of optical circulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108919425A true CN108919425A (en) | 2018-11-30 |
Family
ID=64411923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810779688.6A Pending CN108919425A (en) | 2018-07-16 | 2018-07-16 | A kind of optical circulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108919425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407355A (en) * | 2018-12-28 | 2019-03-01 | 光越科技(深圳)有限公司 | Double-stage photo-insulator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068895A (en) * | 1991-07-23 | 1993-02-10 | 华中理工大学 | A kind of optical isolator |
| JPH1138363A (en) * | 1997-07-17 | 1999-02-12 | Fuji Elelctrochem Co Ltd | 3 port type optical circulator |
| CN2631131Y (en) * | 2003-03-28 | 2004-08-04 | 珠海保税区光联通讯技术有限公司 | Interleaver device |
| CN204557003U (en) * | 2015-04-13 | 2015-08-12 | 福州腾景光电科技有限公司 | The online optical-fiber laser isolator of a kind of compact reflection-type |
| TWM520451U (en) * | 2015-12-02 | 2016-04-21 | Single Well Ind Corp | Packaging mold structure and product thereof |
| CN105891956A (en) * | 2014-11-07 | 2016-08-24 | 徐州旭海光电科技有限公司 | Reflection-type optical circulator array |
-
2018
- 2018-07-16 CN CN201810779688.6A patent/CN108919425A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068895A (en) * | 1991-07-23 | 1993-02-10 | 华中理工大学 | A kind of optical isolator |
| JPH1138363A (en) * | 1997-07-17 | 1999-02-12 | Fuji Elelctrochem Co Ltd | 3 port type optical circulator |
| CN2631131Y (en) * | 2003-03-28 | 2004-08-04 | 珠海保税区光联通讯技术有限公司 | Interleaver device |
| CN105891956A (en) * | 2014-11-07 | 2016-08-24 | 徐州旭海光电科技有限公司 | Reflection-type optical circulator array |
| CN204557003U (en) * | 2015-04-13 | 2015-08-12 | 福州腾景光电科技有限公司 | The online optical-fiber laser isolator of a kind of compact reflection-type |
| TWM520451U (en) * | 2015-12-02 | 2016-04-21 | Single Well Ind Corp | Packaging mold structure and product thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407355A (en) * | 2018-12-28 | 2019-03-01 | 光越科技(深圳)有限公司 | Double-stage photo-insulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9897758B2 (en) | Optical circulators integrated into transceivers | |
| US5740288A (en) | Variable polarization beam splitter, combiner and mixer | |
| US6339661B1 (en) | Polarization maintaining fiber optic circulators | |
| US7359584B2 (en) | Polarization beam separator and combiner | |
| US6757451B2 (en) | Optical circulator | |
| EP0959375A2 (en) | Optical attenuator | |
| EP1726983A1 (en) | Optical isolator and optical device | |
| CN102707385A (en) | Optical modulator | |
| US5930422A (en) | Optical circulator | |
| US6112000A (en) | Reflective array multiplexer with polarization compensation | |
| CN108873173A (en) | A kind of optoisolator and optical circulator | |
| CN110412780A (en) | A kind of integrated free space optical circulator | |
| CN108919425A (en) | A kind of optical circulator | |
| US10268099B2 (en) | Optical modulator and optical module | |
| CN108132500A (en) | A kind of closed loop optical circulator | |
| CN209373271U (en) | A kind of optical circulator core of ipsilateral light out | |
| CN104838605B (en) | Optical transceiver and method for processing optical signal | |
| US9081136B2 (en) | Attenuated primary reflection integrated optical circuit | |
| CN101539673A (en) | Method for combination of multi-path laser lights and polarization-related circulator | |
| US6246518B1 (en) | Reflection type optical isolator | |
| CN111812776A (en) | Three-port optical circulator | |
| US6407861B1 (en) | Adjustable optical circulator | |
| CN208367348U (en) | A kind of optical circulator core | |
| CN208984906U (en) | A kind of integrated free space optical circulator | |
| CN209373270U (en) | A kind of optical circulator core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |