CN108919424A - A kind of optical circulator - Google Patents
A kind of optical circulator Download PDFInfo
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- CN108919424A CN108919424A CN201810777903.9A CN201810777903A CN108919424A CN 108919424 A CN108919424 A CN 108919424A CN 201810777903 A CN201810777903 A CN 201810777903A CN 108919424 A CN108919424 A CN 108919424A
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- pbs prism
- prism
- pbs
- optically
- light
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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
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
Abstract
The invention discloses a kind of optical circulators comprising double optical fiber mechanisms, the first PBS prism, the first optically-active mechanism, the 2nd PBS prism, the 3rd PBS prism, the second optically-active mechanism, the 4th PBS prism and the single optical fiber calibrator being set in sequence along optical path；By the way that double optical fiber mechanisms, the first PBS prism, the first optically-active mechanism, the 2nd PBS prism, the 3rd PBS prism, the second optically-active mechanism, the 4th PBS prism and single optical fiber calibrator are carried out combinations of pairs, form the optical circulator with tight structure, the parallel rays exported from input port can be input to corresponding output port by it, and correspond to the suppressed isolation of light that output port is output to input port, 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 fields of light communication system, more particularly, to 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
It is the case where for the prior art, high the purpose of the present invention is to provide a kind of low in cost, isolation and simultaneously also
With the optical circulator of compact-sized measuring point.
In order to realize that above-mentioned technical purpose, the technical solution adopted by the present invention be：
A kind of optical circulator comprising double optical fiber mechanisms, the first PBS prism, the first optically-active mechanism, being set in sequence along optical path
Two PBS prisms, the 3rd PBS prism, the second optically-active mechanism, the 4th PBS prism and single optical fiber calibrator；
It is equipped in the first PBS prism, the 2nd PBS prism, the 3rd PBS prism and the 4th PBS prism by its plane of incidence
Two-part polarization beam splitter up and down, the first PBS prism, the 2nd PBS prism, the 3rd PBS prism are divided into exit facet
High-reflecting film is additionally provided with the upper surface of the 4th PBS prism and lower end surface；
The exit facet top or lower part of the 3rd PBS prism, the second optically-active mechanism and the 4th PBS prism and the 2nd PBS prism
Relatively.
One of embodiment as double optical fiber mechanisms, it is preferred that double optical fiber mechanisms are quasi- by a pair of optical fiber
Straight device and a roof prism are constituted, and the roof prism is set between double-fiber collimator and the first PBS prism.
Another embodiment as double optical fiber mechanisms, it is preferred that double optical fiber mechanisms are quasi- by a pair of of single fiber
Straight device is constituted.
As one of preferred embodiment of the first optically-active mechanism, the first optically-active mechanism includes along first
The the first Faraday rotation piece and the first wave plate that PBS prism to the 2nd PBS prism direction is set in sequence.
As another preferred embodiment of the first optically-active mechanism, the first optically-active mechanism includes along the first PBS
The first wave plate and the first Faraday rotation piece that prism to the 2nd PBS prism direction is set in sequence.
As one of preferred embodiment of the second optically-active mechanism, the second optically-active mechanism includes along third
The the second Faraday rotation piece and the second wave plate that PBS prism to the 4th PBS prism direction is set in sequence.
As another preferred embodiment of the second optically-active mechanism, the second optically-active mechanism includes along the 3rd PBS
The second wave plate and the second Faraday rotation piece that prism to the 4th PBS prism direction is set in sequence.
Further, the polarization beam splitter in the first PBS prism and the 2nd PBS prism is parallel to each other；3rd PBS
Polarization beam splitter in prism and the 4th PBS prism is parallel to each other.
As a kind of extension embodiment of the present invention program, a kind of optical circulator, by the 3rd above-mentioned PBS prism,
Two optically-active mechanisms and the 4th PBS prism are rotated by 90 °, the incidence of the 3rd PBS prism, the second optically-active mechanism and the 4th PBS prism
Face and exit facet size corresponding be expanded to are adapted and corresponding thereto with the exit facet lower part of the 2nd PBS prism or upper dimension
And it is used to receive signal light or signal light is inputted into the 2nd PBS prism that the 2nd prism exit facet lower part PBS or top are projected
Exit facet lower part or top.
Further, double optical fiber mechanisms are replaced with into four optical fiber mechanisms, single optical fiber calibrator is replaced with into double-fiber collimator.
Using above-mentioned technical solution, compared with prior art, the present invention its have the advantage that for：By by double light
Fine mechanism, the first PBS prism, the first optically-active mechanism, the 2nd PBS prism, the 3rd PBS prism, the second optically-active mechanism, the 4th PBS
Prism and single optical fiber calibrator carry out combinations of pairs, form the optical circulator with tight structure, can will be from input port
The parallel rays of output is input to corresponding output port, and corresponds to the suppressed isolation of light that output port is output to input port,
To realize the inhibition isolation of signal light, 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；
The main view light that Fig. 2 is 1 port port1 to port port2 of the embodiment of the present invention propagates schematic diagram；
The main view light that Fig. 3 is 1 port port2 to port port3 of the embodiment of the present invention propagates schematic diagram；
The main view light reverse isolation that Fig. 4 is 1 port port3 to port port2 of the embodiment of the present invention propagates schematic diagram；
Fig. 5 is that the main view light of the port port1 to port port2 of the embodiment of the present invention 2 propagates the port port1 in schematic diagram
To the 3rd PBS component prism；
The 3rd PBS rib overlooked in light propagation schematic diagram that Fig. 6 is the port port1 to port port2 of the embodiment of the present invention 2
Mirror is to the part port2；
The port port2 overlooked in light propagation schematic diagram that Fig. 7 is the port port2 to port port3 of the embodiment of the present invention 2
To the 3rd PBS component prism；
Fig. 8 is that the main view light of the port port2 to port port3 of the embodiment of the present invention 2 propagates the 3rd PBS rib in schematic diagram
Mirror is to the part port3；
Fig. 9 is that the main view light of the port port1 ' Dao port port2 ' of the embodiment of the present invention 2 propagates the port in schematic diagram
Port1 ' is to the 3rd PBS component prism；
The third overlooked in light propagation schematic diagram that Figure 10 is the port port1 ' Dao port port2 ' of the embodiment of the present invention 2
PBS prism is to the part port2 '；
The port overlooked in light propagation schematic diagram that Figure 11 is the port port2 ' Dao port port3 ' of the embodiment of the present invention 2
Port2 ' is to the 3rd PBS component prism；
Figure 12 is that the main view light of the port port2 ' Dao port port3 ' of the embodiment of the present invention 2 propagates the third in schematic diagram
PBS prism is to the part port3 '；
Wherein, Fig. 2 to 12 Zhong Shuan optical fiber mechanisms and the optical path of single optical fiber calibrator be conventional optical path, therefore, double optical fiber mechanisms and
Single optical fiber calibrator, which conceals, to be not shown；
Figure 13 is that the plane of incidence of the first PBS prism of the embodiment of the present invention 2 is correspondingly formed for port port1, port1 ',
The optical signal transmission position simplified diagram of port3 and port3 '；
Figure 14 is that the exit facet of the 4th PBS prism of the embodiment of the present invention 2 is correspondingly formed for port port2, port2 ' light
Signal transmits position simplified diagram.
Specific embodiment
A kind of optical circulator comprising double optical fiber mechanisms for being set in sequence along optical path, the first PBS prism, the first optically-active machine
Structure, the 2nd PBS prism, the 3rd PBS prism, the second optically-active mechanism, the 4th PBS prism and single optical fiber calibrator；
It is equipped in the first PBS prism, the 2nd PBS prism, the 3rd PBS prism and the 4th PBS prism by its plane of incidence
Two-part polarization beam splitter up and down, the first PBS prism, the 2nd PBS prism, the 3rd PBS prism are divided into exit facet
High-reflecting film is additionally provided with the upper surface of the 4th PBS prism and lower end surface；
The exit facet top or lower part of the 3rd PBS prism, the second optically-active mechanism and the 4th PBS prism and the 2nd PBS prism
Relatively.
One of embodiment as double optical fiber mechanisms, it is preferred that double optical fiber mechanisms are quasi- by a pair of optical fiber
Straight device and a roof prism are constituted, and the roof prism is set between double-fiber collimator and the first PBS prism.
Another embodiment as double optical fiber mechanisms, it is preferred that double optical fiber mechanisms are quasi- by a pair of of single fiber
Straight device is constituted.
As one of preferred embodiment of the first optically-active mechanism, the first optically-active mechanism includes along first
The the first Faraday rotation piece and the first wave plate that PBS prism to the 2nd PBS prism direction is set in sequence.
As another preferred embodiment of the first optically-active mechanism, the first optically-active mechanism includes along the first PBS
The first wave plate and the first Faraday rotation piece that prism to the 2nd PBS prism direction is set in sequence.
As one of preferred embodiment of the second optically-active mechanism, the second optically-active mechanism includes along third
The the second Faraday rotation piece and the second wave plate that PBS prism to the 4th PBS prism direction is set in sequence.
As another preferred embodiment of the second optically-active mechanism, the second optically-active mechanism includes along the 3rd PBS
The second wave plate and the second Faraday rotation piece that prism to the 4th PBS prism direction is set in sequence.
Further, the polarization beam splitter in the first PBS prism and the 2nd PBS prism is parallel to each other；3rd PBS
Polarization beam splitter in prism and the 4th PBS prism is parallel to each other.
As a kind of extension embodiment of the present invention program, a kind of optical circulator, by the 3rd above-mentioned PBS prism,
Two optically-active mechanisms and the 4th PBS prism are rotated by 90 °, the incidence of the 3rd PBS prism, the second optically-active mechanism and the 4th PBS prism
Face and exit facet size corresponding be expanded to are adapted and corresponding thereto with the exit facet lower part of the 2nd PBS prism or upper dimension
And it is used to receive signal light or signal light is inputted into the 2nd PBS prism that the 2nd prism exit facet lower part PBS or top are projected
Exit facet lower part or top.
Further, double optical fiber mechanisms are replaced with into four optical fiber mechanisms, single optical fiber calibrator is replaced with into double-fiber collimator.
Embodiment 1
As shown in Fig. 1 to one of 4, the present embodiment includes the double-fiber collimator being set in sequence along optical path, roof prism, first
PBS prism, the first Faraday rotation piece, the first wave plate, the 2nd PBS prism, the 3rd PBS prism, the second Faraday rotation piece,
Two wave plates, the 4th PBS prism and single optical fiber calibrator；
It is equipped in the first PBS prism, the 2nd PBS prism, the 3rd PBS prism and the 4th PBS prism by its plane of incidence
Two-part polarization beam splitter up and down, the first PBS prism, the 2nd PBS prism, the 3rd PBS prism are divided into exit facet
High-reflecting film is additionally provided with the upper surface of the 4th PBS prism and lower end surface；
The 3rd PBS prism, the second optically-active mechanism and the 4th PBS prism are opposite with the exit facet lower part of the 2nd PBS prism；
Polarization beam splitter in the first PBS prism and the 2nd PBS prism is parallel to each other；The 3rd PBS prism and the 4th
Polarization beam splitter in PBS prism is parallel to each other.
The present embodiment structure is correspondingly formed three for signal light input or output port port1, port2, port3.
As shown in Fig. 2, it illustrates the light of the present embodiment port port1 to port port2 to propagate schematic diagram；Double optical fiber
The directional light that straight device port port1 output tilts down is angled to as horizon light after roof prism, and horizon light is first incident on
It is reflected on polarization beam splitter 1031 after the high-reflecting film of first PBS prism, 103 lower end surface, enters after polarization beam splitter 1031
It penetrates light and is divided into the orthogonal P light of polarization state and S light, wherein reflection occurs for S light from the first PBS rib through polarization beam splitter 1031
103 exit facet horizontal output of mirror, P light quilt after polarization beam splitter 1031 is transmitted to the high-reflecting film of 103 upper surface of the first PBS prism
Reflection, then from the exit facet horizontal output of the first PBS prism 103；The P light and S light of horizontal output are revolved by the first faraday
Its polarization state remains unchanged after rotor 104 and the first wave plate 105, is incident on the 2nd PBS prism 106, wherein S light is incident on
It is reflected, is then incident on the polarization beam splitter 1061 of the 2nd PBS prism 106 after the high-reflecting film of two PBS prisms, 106 lower end surface
It reflects, then from the exit facet horizontal output of the 2nd PBS prism 106；P light is incident on after the 2nd PBS prism 106 from polarization
1061 horizontal transmission of spectro-film is gone out；The P light and a branch of horizon light of S photosynthesis projected by the 2nd PBS prism 106 is incident on the
It on the high-reflecting film of three PBS prisms, 107 lower end surface, is then reflected on polarization beam splitter 1071, by polarization beam splitter 1071
Incident light is divided into the orthogonal P light of polarization state and S light afterwards, wherein reflection occurs for S light from third through polarization beam splitter 1071
The exit facet horizontal output of PBS prism 107, P light are transmitted to the height of 107 upper surface of the 3rd PBS prism through polarization beam splitter 1071
Anti- film reflects, then from the exit facet horizontal output of the 3rd PBS prism 107；The P light and S light of horizontal output pass through second
Its polarization state remains unchanged after Faraday rotation piece 108 and the second wave plate 109, is incident on the 4th PBS prism 110, wherein S light
It is incident on the high-reflecting film of 110 lower end surface of the 4th PBS prism, is then incident on the polarization beam splitter 1101 of the 4th PBS prism 110
It is upper to reflect, then from the exit facet horizontal output of the 4th PBS prism 110；P light is incident on after the 4th PBS prism 110 from inclined
Vibration 1101 horizontal transmission of spectro-film is gone out；P light and S photosynthesis light beam by the output of the 4th PBS prism 110 are incident on monochromatic light
The port port2 of fine collimator 111 realizes positive transmission of the optical signal from port port1 to port2.
The light that Fig. 3 is 1 port port2 to port port3 of the embodiment of the present invention propagates schematic diagram；Single optical fiber calibrator
The light in 111 port port2 output level direction is incident on the 4th PBS prism 110, divides by polarization beam splitter 1101 for polarization
The orthogonal P light of state and S light, wherein S light occurs to reflect to be incident on the high-reflecting film of 110 lower end surface of the 4th PBS prism to occur
Reflection, from 110 horizontal output of the 4th PBS prism after reflection, wherein P light is after from the 4th PBS prism 110 from polarization beam splitter
1101 horizontal transmissions are gone out；The P light and S light of horizontal output are after the second optically-active mechanism 108,109, by the second Faraday rotation
The nonreciprocal influence of piece 108, wherein P polarization state, which is rotated by 90 °, becomes S light, and S polarization state, which is rotated by 90 °, becomes P light；S light
It is reflected after being incident on the high-reflecting film of 107 upper surface of the 3rd PBS prism, is then incident on the polarization point of the 3rd PBS prism 107
It is reflected on light film 1071, then from 107 horizontal output of the 3rd PBS prism, P light is transmitted through polarization beam splitter 1071,
Then from 107 horizontal output of the 3rd PBS prism, so that S light and P photosynthesis are a branch of；Light is incident on the 2nd PBS prism after light combination
On 106.After light is incident on the 2nd PBS prism 106, divide by polarization beam splitter 1061 for the orthogonal P light of polarization state and S
Light, wherein S light occurs to reflect to be incident on the high-reflecting film of 106 lower end surface of the 2nd PBS prism to reflect, from second after reflection
106 horizontal output of PBS prism, wherein P light is gone out after from the 2nd PBS prism 106 from 1061 horizontal transmission of polarization beam splitter；
The P light of horizontal output and S light influence after the first optically-active mechanism 104,105, by the first Faraday rotation piece 104 is nonreciprocal,
Wherein, P polarization state, which is rotated by 90 °, becomes S light, and S polarization state, which is rotated by 90 °, becomes P light；S light is incident on the first PBS prism
The high-reflecting film of 103 upper surfaces reflects, and is then incident on the polarization beam splitter 1031 of the first PBS prism 103 and reflects,
Then from the first PBS prism（103）Horizontal output, P light are transmitted through PBS coated surface, then from 103 water of the first PBS prism
Flat output, finally, S light with P photosynthesis is a branch of is incident on roof prism, the light being angled under a branch of horizontal direction is input to double light
The port Port3 of fine collimator realizes optical signal from port port2 to the transmission of port Port3.
The light reverse isolation that Fig. 4 is 1 port port3 to port port2 of the embodiment of the present invention propagates schematic diagram, double optical fiber
Collimator output end exports acclivitous directional light and is angled to after roof prism 102 as horizontal direction, is then incident on
First PBS prism 103 divides by polarization beam splitter 1031 for the orthogonal P light of polarization state and S light, wherein P light is through polarizing
Spectro-film 1031 transmits, and then from 103 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 103 upper surface of the first PBS prism, then from the outgoing of the first PBS prism 103
Face horizontal output；Its polarization state after the first optically-active mechanism 104,105 remains unchanged the P light of horizontal output with S light, is incident on
2nd PBS prism 106, wherein the high-reflecting film that P light is incident on 106 lower end surface of the 2nd PBS prism reflects, then using
The high-reflecting film that polarization beam splitter 1061 is transmitted to 106 upper surface of the 2nd PBS prism is defeated from the 2nd PBS prism levels after reflecting
Out, S light reflects after being incident on the polarization beam splitter 1061 of the 2nd PBS prism 106, and light is reflected on the 2nd PBS prism 106
It is reflected on the high-reflecting film of end face, is then reflected into horizontal output again, the light of such port Port3 input is due to can not be incident
It to the 3rd PBS prism 107, therefore also can not just be incident on the Port2 of port, it is achieved that port Port3 to port Port2
Reverse isolation.
Embodiment 2
As shown in Fig. 5 to 14, the present embodiment is in the implementation structure basis of embodiment 1, by the 3rd PBS prism 107, the second optically-active
Mechanism and the 4th PBS prism 110 are rotated by 90 °, and the 3rd PBS prism 107, the second optically-active mechanism and the 4th PBS prism 110
The plane of incidence and exit facet size corresponding be expanded to be adapted and be used for the exit facet lower dimension of the 2nd PBS prism 106
It receives the signal light of 106 exit facet lower part of the 2nd PBS prism injection or signal light is inputted to the exit facet of the 2nd PBS prism 106
Lower part, the setting of remaining part and label are same as Example 1.
The present embodiment after rotating the 3rd PBS prism 107, the second optically-active mechanism and the 4th PBS prism 110 forms reality
The structure of existing two circulator functions, and corresponding port port1, port2, port3, port1 having for light propagation ',
Port2 ' and port3 '；
Wherein, the plane of incidence that Figure 13 shows the first PBS prism 103 is correspondingly formed for port port1, port1 ', port3 and
The transmission position of the lightray propagation of port3 '；
The exit facet that Figure 14 shows the 4th PBS prism 110 is correspondingly formed the lightray propagation for port port2 ', port2 '
Transmission position.
In addition, the light that Fig. 5 shows the port port1 to port port2 of the present embodiment propagates the port in schematic diagram
Port1 is to the 3rd PBS component prism；
The 3rd PBS prism that the light that Fig. 6 shows the port port1 to port port2 of the present embodiment is propagated in schematic diagram arrives
The part port2；
The light that Fig. 7 shows the port port2 to port port3 for embodiment propagates the port port2 to the in schematic diagram
Three PBS component prisms；
The 3rd PBS prism that the light that Fig. 8 shows the port port2 to port port3 of the present embodiment is propagated in schematic diagram arrives
The part port3；
The port port1 ' that the light that Fig. 9 shows the port port1 ' to port port2 ' of the present embodiment is propagated in schematic diagram is arrived
3rd PBS component prism；
The light that Figure 10 shows the port port1 ' to port port2 ' of the present embodiment propagates the 3rd PBS prism in schematic diagram
To the part port2 '；
The light that Figure 11 shows the port port2 ' to port port3 ' of the embodiment of the present invention propagates schematic diagram middle port
Port2 ' is to the 3rd PBS component prism；
The light that Figure 12 shows the port port2 ' to port port3 ' of the present embodiment propagates the 3rd PBS prism in schematic diagram
To the part port3 '；
Since, Fig. 5 to 12 Zhong Shuan optical fiber mechanisms and the optical path of single optical fiber calibrator are conventional optical path, therefore, double optical fiber mechanisms and
Single optical fiber calibrator, which conceals, to be not shown；And optical path shown in figure marks clear, 1 basis in conjunction with the embodiments, it is believed that
Those skilled in the art accurate can recognize its expression content, therefore just not repeat one by one with regard to the description of paths.
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 the double optical fiber mechanisms being set in sequence along optical path, the first PBS prism,
One optically-active mechanism, the 2nd PBS prism, the 3rd PBS prism, the second optically-active mechanism, the 4th PBS prism and single optical fiber calibrator；
It is equipped in the first PBS prism, the 2nd PBS prism, the 3rd PBS prism and the 4th PBS prism by its plane of incidence
Two-part polarization beam splitter up and down, the first PBS prism, the 2nd PBS prism, the 3rd PBS prism are divided into exit facet
High-reflecting film is additionally provided with the upper surface of the 4th PBS prism and lower end surface；
The exit facet top or lower part of the 3rd PBS prism, the second optically-active mechanism and the 4th PBS prism and the 2nd PBS prism
Relatively.
2. a kind of optical circulator according to claim 1, it is characterised in that：Double optical fiber mechanisms are quasi- by a pair of optical fiber
Straight device and a roof prism are constituted, and the roof prism is set between double-fiber collimator and the first PBS prism.
3. a kind of optical circulator according to claim 1, it is characterised in that：Double optical fiber mechanisms are by a pair of of single fiber
Collimator is constituted.
4. a kind of optical circulator according to claim 1, it is characterised in that：The first optically-active mechanism includes along first
The the first Faraday rotation piece and the first wave plate that PBS prism to the 2nd PBS prism direction is set in sequence.
5. a kind of optical circulator according to claim 1, it is characterised in that：The first optically-active mechanism includes along first
The first wave plate and the first Faraday rotation piece that PBS prism to the 2nd PBS prism direction is set in sequence.
6. a kind of optical circulator according to claim 1, it is characterised in that：The second optically-active mechanism includes along third
The the second Faraday rotation piece and the second wave plate that PBS prism to the 4th PBS prism direction is set in sequence.
7. a kind of optical circulator according to claim 1, it is characterised in that：The second optically-active mechanism includes along third
The second wave plate and the second Faraday rotation piece that PBS prism to the 4th PBS prism direction is set in sequence.
8. a kind of optical circulator according to claim 1, it is characterised in that：The first PBS prism and the 2nd PBS prism
In polarization beam splitter be parallel to each other；Polarization beam splitter in the 3rd PBS prism and the 4th PBS prism is parallel to each other.
9. a kind of optical circulator, it is characterised in that：By the 3rd PBS prism, the second optically-active machine described in one of claim 1 to 8
Structure and the 4th PBS prism are rotated by 90 °, the plane of incidence and the outgoing of the 3rd PBS prism, the second optically-active mechanism and the 4th PBS prism
Size corresponding be expanded in face is adapted and corresponding thereto and for connecing with the exit facet lower part of the 2nd PBS prism or upper dimension
Receive the signal light or signal light is inputted under the exit facet of the 2nd PBS prism that the 2nd prism exit facet lower part PBS or top are projected
Portion or top.
10. a kind of optical circulator according to claim 9, it is characterised in that：Double optical fiber mechanisms are replaced with into four optical fiber machines
Single optical fiber calibrator is replaced with double-fiber collimator by structure.
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|---|---|---|---|
| CN201810777903.9A CN108919424A (en) | 2018-07-16 | 2018-07-16 | A kind of optical circulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810777903.9A CN108919424A (en) | 2018-07-16 | 2018-07-16 | A kind of optical circulator |
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Citations (5)
| 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 |
| CN203551839U (en) * | 2013-10-17 | 2014-04-16 | 深圳市创鑫激光技术有限公司 | Kilowatt high isolation collimation type optical isolator |
| 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 |
-
2018
- 2018-07-16 CN CN201810777903.9A patent/CN108919424A/en active Pending
Patent Citations (5)
| 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 |
| CN203551839U (en) * | 2013-10-17 | 2014-04-16 | 深圳市创鑫激光技术有限公司 | Kilowatt high isolation collimation type optical isolator |
| 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 |
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Application publication date: 20181130 |