CN106707534A - Optical module - Google Patents
Optical module Download PDFInfo
- Publication number
- CN106707534A CN106707534A CN201611154682.7A CN201611154682A CN106707534A CN 106707534 A CN106707534 A CN 106707534A CN 201611154682 A CN201611154682 A CN 201611154682A CN 106707534 A CN106707534 A CN 106707534A
- Authority
- CN
- China
- Prior art keywords
- polarizer
- light
- wave plate
- polarization direction
- laser
- 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
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Polarising Elements (AREA)
Abstract
The invention discloses an optical module, which comprises a laser, a half wavelength plate, a Faraday rotating cylinder, a first polarizer, a reflecting mirror and a silicon optical chip, and is characterized in that light emitted by the laser shoot to the reflecting mirror through the half wavelength plate, the Faraday rotating cylinder and the first polarizer, and the light is reflected by the reflecting mirror and shoots to the silicon optical chip; and the polarization direction of the light emitted by the laser is parallel to a light incoming surface of the silicon optical chip, the polarization direction of the light emitted by the laser after passing through the half wavelength plate, the Faraday rotating cylinder and the first polarizer is mutually parallel to the light incoming surface of the silicon optical chip, and the light is stopped after once oscillation between the laser and the reflecting mirror. Through setting the half wavelength plate, the Faraday rotating cylinder the first polarizer, the polarization direction of the polarized light passing through the half wavelength plate, the Faraday rotating cylinder and the first polarizer can be enabled to be the same as the polarization direction required by the silicon optical chip, namely, the direction which is parallel to the light incoming surface of the silicon optical chip, and the light can also be prevented from generating multiple times of oscillation between the laser and the reflecting mirror at the same time.
Description
Technical field
The present invention relates to technical field of photo communication, espespecially a kind of optical module.
Background technology
Silicon light technique is a kind of low cost, optical communication technique of high speed based on silicon photonics, manufactures high by silicon materials
The optical component of integrated level has been possibly realized.Silicon optical chip by highly developed microelectronics nanometer fabrication process, by this
Slightly small silicon optical chip is applied to that in optical module information communication more efficient energy-saving can be made.
The polarization direction of the polarised light that the optical module with silicon optical chip is launched light source generally has is strict with, and one
As in the case of a kind of silicon optical chip only need to a kind of polarised light of polarization direction, therefore, application when can be to source emissioning light
Polarization direction is adjusted to adapt to the use demand of silicon optical chip.However, laser as silicon optical chip light source etc. is right
Reflected light is very sensitive, and reflected light may cause laser performance to deteriorate even damage, it is therefore desirable to provide a kind of optical module both
The reflected light that the polarization direction of the light of laser light source can stop in light path again can be adjusted.
The content of the invention
Regarding to the issue above, the embodiment of the present invention provides a kind of optical module, is used to the inclined of the polarised light of laser transmitting
The direction that shakes is controlled, so that the polarization direction of emergent light meets silicon optical chip demand, while preventing light in laser and reflection
Multiple oscillation is produced between mirror.
Embodiment of the present invention provides a kind of optical module, including：It is laser, half-wave plate, Faraday rotation cylinder, first inclined
Shake piece, speculum and silicon optical chip；The laser emitting light is by the half-wave plate, Faraday rotation cylinder, the first polarizer
The speculum is incident to, by being incident to the silicon optical chip after the reflection of the speculum；Wherein, the half-wave plate is to warp
The polarization direction for crossing the polarised light of the half-wave plate turns clockwise；The Faraday rotation cylinder along the half-wave plate to pointing to institute
The polarization direction rotate counterclockwise of the polarised light in the first polarizer direction is stated, to pointing to the half-wave plate along first polarizer
The polarization direction of the polarised light in direction turns clockwise；The polarization direction of first polarizer goes out with the laser
The polarization direction for penetrating light is parallel；
The polarization direction of the laser emitting light is parallel with the silicon optical chip incidence surface, and the laser emitting light
It is mutual with the silicon optical chip incidence surface by the polarization direction after the half-wave plate, Faraday rotation cylinder and the first polarizer
It is parallel, end after once vibrating between the laser and the speculum.
The present invention has following Advantageous Effects：
The optical module that embodiment of the present invention is provided, including：Laser, half-wave plate, Faraday rotation cylinder, the first polarization
Piece, speculum and silicon optical chip；Laser emitting light is incident to reflection by half-wave plate, Faraday rotation cylinder, the first polarizer
Mirror, by being incident to silicon optical chip after the reflection of speculum；Wherein, polarization direction of the half-wave plate to the polarised light by half-wave plate
Turn clockwise；Faraday rotation cylinder revolves counterclockwise to the polarization direction that the polarised light in the first polarizer direction is pointed to along half-wave plate
Turn, turned clockwise to pointing to the polarization direction of polarised light in half-wave plate direction along the first polarizer；The polarization of the first polarizer
Change direction parallel with the polarization direction of laser emitting light；Put down with silicon optical chip incidence surface the polarization direction of laser emitting light
OK, and laser emitting light by half-wave plate, Faraday rotation cylinder and the first polarizer after polarization direction and silicon optical chip
Incidence surface is parallel to each other, and ends after once vibrating between laser and speculum.Due to that can incide in silicon optical chip
The polarization direction of the polarised light in portion parallel to silicon optical chip incidence surface, therefore, by between laser and speculum set
Half-wave plate, Faraday rotation cylinder and the first polarizer can be controlled to the polarization direction of the polarised light of laser transmitting makes outgoing
The polarization direction of light meets silicon optical chip demand, while preventing light that multiple oscillation is produced between laser and speculum.
Brief description of the drawings
Fig. 1 is the structural representation of optical module provided in an embodiment of the present invention；
Fig. 2 is one of schematic diagram of structure of optical assembly provided in an embodiment of the present invention；
Fig. 3 is the fundamental diagram of optical assembly provided in an embodiment of the present invention；
Fig. 4 is the optically isolated schematic diagram of optical assembly provided in an embodiment of the present invention；
Fig. 5 is the two of the schematic diagram of the structure of optical assembly provided in an embodiment of the present invention；
Fig. 6 is the three of the schematic diagram of the structure of optical assembly provided in an embodiment of the present invention；
Fig. 7 is the index path of optical module provided in an embodiment of the present invention.
Specific embodiment
For problems of the prior art, the embodiment of the present invention provides a kind of optical module, is used to launch laser
The polarization direction of polarised light be controlled so that the polarization direction of emergent light meets silicon optical chip demand, while preventing light from existing
Multiple oscillation is produced between laser and speculum.
As shown in figure 1, optical module provided in an embodiment of the present invention, including：Laser 100, half-wave plate 21, Faraday rotation
The 22, first polarizer 23 of cylinder, speculum 300 and silicon optical chip 400；The emergent light of laser 100 revolves by half-wave plate 21, faraday
Rotating cylinder 22, the first polarizer 23 are incident to speculum 300, by being incident to silicon optical chip 400 after the reflection of speculum 300；Its
In,
The polarization direction of 21 pairs of polarised lights by half-wave plate 21 of half-wave plate turns clockwise；22 pairs of edges of Faraday rotation cylinder
Half-wave plate 21 points to the polarization direction rotate counterclockwise of the polarised light in the direction of the first polarizer 23, to being pointed to along the first polarizer 23
The polarization direction of the polarised light in the direction of half-wave plate 21 turns clockwise；The polarization direction of the first polarizer 23 and laser 100
The polarization direction of emergent light is parallel.
In the specific implementation, the light required for silicon optical chip is generally the polarised light of a particular polarization, by situation
The polarization direction of the polarised light that can be incident to down inside silicon optical chip should parallel to the incidence surface of silicon optical chip, therefore, hair
Polarised light required for polarization direction is silicon optical chip parallel to the polarised light of silicon optical chip incidence surface in bright embodiment.
In practical application, half-wave plate 21, Faraday rotation cylinder 22 and the first polarizer 23 are in the Shi Kewei phases that complete
The optical assembly 200 of the one mutually fitted, as shown in Fig. 2 rotating the optical assembly 200 along optical axis can change the first polarizer 23
Polarization direction, in concrete application, above-mentioned light group can be rotated according to the polarization direction of the polarised light required for silicon optical chip
Part 200, so that the polarization direction of the first polarizer 23 is adapted therewith.
The change for inciding the polarization direction of the polarised light between speculum to the launching light of laser below is carried out in detail
Explanation.
For example, the polarization direction of laser emitting light is as shown in figure 3, be polarization direction along the x-axis direction, wherein y
Direction of principal axis is the vertical direction parallel to paper, and x-axis direction is the horizontal direction perpendicular to paper, parallel to enter light with silicon optical chip
The polarization direction Ye WeixZhou directions in face.The emergent light of laser by after optical assembly 200, it is necessary to make the polarization side of emergent light
To being x-axis direction.Specifically, half-wave plate 21 make by the polarization direction of polarised light turn clockwise 45 degree；Faraday rotation
The direction of rotation of cylinder 22 is the direction of propagation (i.e. the direction of arrow of Fig. 3 optical axises) 45 degree of rotate counterclockwise of the light along Fig. 3；First is inclined
Shake piece polarization direction be x-axis direction.When polarization direction is that the polarised light for vibrating along the x-axis direction is incided by the side of half-wave plate 21
During light optical assembly 200, the polarization direction of incident light can be made to turn clockwise 45 degree by half-wave plate 11, then by Faraday rotation
Cylinder 22 so that the polarization direction of polarised light 45 degree of rotate counterclockwise again, i.e., by Faraday rotation cylinder 22 after, polarised light it is inclined
Shake direction Reng WeixZhou directions, because the polarization direction of the first polarizer 23 is x-axis direction, then by Faraday rotation cylinder 23
X-axis direction polarised light afterwards can be by the first polarizer 23, and the polarization direction of emergent light is x-axis direction.Thus, by above-mentioned
The polarization direction of the polarised light of the outgoing of optical assembly 200 is x-axis direction, parallel to the incidence surface of silicon optical chip, to meet silicon light core
The polarization direction of the polarised light that piece needs.
Further, in above-mentioned optical module provided in an embodiment of the present invention, half-wave plate 21, Faraday rotation cylinder 22 and first
The optical assembly 200 that polarizer 23 is constituted also has optically isolated effect, and its optically isolated principle is as shown in Figure 4.Polarization direction is x
The polarised light of direction of principal axis is by the side of half-wave plate 21 incidence optical assembly 200, the polarization of polarised light in each part by optical assembly 200
The change procedure in direction is identical with the polarization variations process shown in Fig. 3, repeats no more in addition, and the polarization direction of emergent light is x-axis
Direction；By after the reflection of reflecting surface, polarization direction stresses new incident light for the polarised light in x-axis direction by the first polarizer 23
Component 200, now the direction of rotation of Faraday rotation cylinder is as shown in figure 4, be to be turned clockwise 45 degree along optical propagation direction, then x
After by Faraday rotation cylinder 22, polarization direction turns clockwise 45 degree the polarised light of direction of principal axis, then by half-wave plate 21
Afterwards, its polarization direction turns clockwise 45 degree again, thus, after the reflection of reflected face second by 200 outgoing of optical assembly when
Polarization direction is y-axis direction；Second by after the reflection of reflecting surface, with polarization direction is the polarised light in y-axis direction by half-wave
The incident optical assembly 200 of the side of piece 21 third time, now the direction of rotation of Faraday rotation cylinder 22 is to be revolved counterclockwise along optical propagation direction
Turn, the polarised light in y-axis direction by being turned clockwise after half-wave plate 21 45 degree, then by after Faraday rotation cylinder 22 during another mistake
Pin rotates 45 degree, is for the third time y-axis direction by the polarization direction of the polarised light after Faraday rotation cylinder 22 thus, and the
The polarization direction of one polarizer 23 is x-axis direction, therefore, thus polarised light cannot be ended, light group by the first polarizer 23
Part prevents multiple oscillation of the polarised light between laser and speculum.
In above-mentioned optical module provided in an embodiment of the present invention, polarization direction and the silicon optical chip incidence surface of laser emitting light
It is parallel, and laser emitting light is by the polarization direction after half-wave plate, Faraday rotation cylinder and the first polarizer and silicon light core
Piece incidence surface is parallel to each other, and ends after once vibrating between laser and speculum.
As a kind of preferred embodiment, as shown in figure 5, above-mentioned optical module provided in an embodiment of the present invention, also includes：Position
Deviate from the second polarizer 24 of 22 sides of Faraday rotation cylinder in half-wave plate 21.The polarised light of the transmitting of laser 100 is by half-wave plate
21 sides are incident, and the second polarizer 24 can be used as the polarizer, the polarization direction of the second polarizer and the polarization of the polarised light of incidence
Direction is identical, i.e., the polarization direction with the launching light of laser 100 is parallel.
Further, as shown in figure 5, above-mentioned optical module provided in an embodiment of the present invention, also includes：Positioned at the He of half-wave plate 21
The 3rd polarizer 25 between Faraday rotation cylinder 22.3rd polarizer 25 can be used as the analyzer of half-wave plate 21；Laser 100
The polarised light launched by the side of half-wave plate 21 it is incident when, the polarization direction of the 3rd polarizer 25 with by inclined after half-wave plate 21
Shake light polarization direction it is identical, i.e., point to the direction of the first polarizer 23 along half-wave plate 21 and turn clockwise, its anglec of rotation
It is consistent to the polarization direction anglec of rotation of polarised light with half-wave plate 21.
Further, as shown in figure 5, in order to reduce reflection of the light in device end face, method can be deviated from above-mentioned half-wave plate 21
Draw the side of rotating cylinder 22 and/or the first polarizer 23 that anti-reflection film 26 is set away from 22 sides of Faraday rotation cylinder.
In another enforceable mode, as shown in fig. 6, can be by half-wave plate 21, Faraday rotation cylinder 22 and first
Polarizer 23 is coaxially disposed, and the optical axis direction of three is set to 4-8 degree with the angle of the direction of propagation of light.Thus can also reduce
Because the end face reflection of the polarizer 23 of half-wave plate 21 or first returns to the light of light source, so as to ensure as laser of light source etc.
The normal oscillation of equipment.In a particular application, above-mentioned angle theta is preferably set to 7 degree.
The optoisolator in optical module and other parts are illustrated below.
As shown in fig. 7, optical module provided in an embodiment of the present invention, also includes：Standard on the light direction of laser 100
Straight lens 500；The light of the outgoing of laser 100 is by collimation lens 500 and (half-wave plate 21, the Faraday rotation cylinder of optical assembly 200
22 and first polarizer 23) after, incide speculum 300, the reflected light of speculum 300 incides silicon optical chip 400.Collimation is saturating
Mirror 500 can further be collimated to the launching light of laser, and the direction of propagation of light can be changed using speculum 300, so that its
The position reasonable disposition of its device, reduces module volume.
Further, as shown in fig. 7, above-mentioned optical module also includes：Printing opacity pedestal 600；Collimation lens 500, optical assembly 200
(half-wave plate 21, Faraday rotation cylinder 22 and the first polarizer 23) is arranged on printing opacity pedestal 600, and silicon optical chip 400 is located at
Printing opacity pedestal 600 is away from the side of optical assembly 200 (half-wave plate 21, Faraday rotation cylinder 22 and the first polarizer 23).Specific
Using when, can using silica-base material as above-mentioned printing opacity pedestal 600, the reflected light of speculum 300 enters by after printing opacity pedestal 600
It is mapped on silicon optical chip 500, and printing opacity pedestal 600 can also have certain deviation to act on to light.
Further, as shown in fig. 7, above-mentioned silicon optical chip 400 includes grating coupler 41；The reflected light of speculum 300
Incide on grating coupler 41.Additionally, silicon optical chip 400 may also include the detector not shown in optical modulator 42 and figure
Etc. other devices；By the light of grating coupler 41 to optical modulator 42 and other devices outgoing.
Fig. 7 shows that the launching light of laser 100 is inciding silicon by each part such as collimation lens 500 and optical assembly 200
The index path of optical chip 400.As shown in fig. 7, the polarised light of the transmitting of laser 100 is by collimation lens 500 and optical assembly 200
After (half-wave plate 21, Faraday rotation cylinder 22 and the first polarizer 23), its polarization direction is inclined required for silicon optical chip 400
Shake direction (inciding the parallel incidence surface with silicon optical chip 400 in polarization direction of the polarised light of silicon optical chip 400), then by anti-
Incided after the reflection for penetrating mirror 300 on printing opacity pedestal 600, printing opacity pedestal 600 light is reflected after with certain incidence angle
Incide on photo-coupler 41, by after the effect of photo-coupler 41, shining on optical modulator 42.Preferably, light is incident
Incidence angle to photo-coupler 41 can be 8-16 degree.
The optical module that embodiment of the present invention is provided, including：Laser, half-wave plate, Faraday rotation cylinder, the first polarization
Piece, speculum and silicon optical chip；Laser emitting light is incident to reflection by half-wave plate, Faraday rotation cylinder, the first polarizer
Mirror, by being incident to silicon optical chip after the reflection of speculum；Wherein, polarization direction of the half-wave plate to the polarised light by half-wave plate
Turn clockwise；Faraday rotation cylinder revolves counterclockwise to the polarization direction that the polarised light in the first polarizer direction is pointed to along half-wave plate
Turn, turned clockwise to pointing to the polarization direction of polarised light in half-wave plate direction along the first polarizer；The polarization of the first polarizer
Change direction parallel with the polarization direction of laser emitting light；Put down with silicon optical chip incidence surface the polarization direction of laser emitting light
OK, and laser emitting light by half-wave plate, Faraday rotation cylinder and the first polarizer after polarization direction and silicon optical chip
Incidence surface is parallel to each other, and ends after once vibrating between laser and speculum.Due to that can incide in silicon optical chip
The polarization direction of the polarised light in portion parallel to silicon optical chip incidence surface, therefore, by between laser and speculum set
Half-wave plate, Faraday rotation cylinder and the first polarizer can be controlled to the polarization direction of the polarised light of laser transmitting makes outgoing
The polarization direction of light meets silicon optical chip demand, while preventing light that multiple oscillation is produced between laser and speculum.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (9)
1. a kind of optical module, it is characterised in that including：Laser, half-wave plate, Faraday rotation cylinder, the first polarizer, speculum
With silicon optical chip；The laser emitting light is incident to described anti-by the half-wave plate, Faraday rotation cylinder, the first polarizer
Mirror is penetrated, by being incident to the silicon optical chip after the reflection of the speculum；Wherein,
The half-wave plate turns clockwise to the polarization direction of the polarised light by the half-wave plate；The Faraday rotation cylinder is right
The polarization direction rotate counterclockwise of the polarised light in the first polarizer direction is pointed to along the half-wave plate, to inclined along described first
The polarization direction that the piece that shakes points to the polarised light in the half-wave plate direction turns clockwise；The polarization direction of first polarizer
Polarization direction with the laser emitting light is parallel；
The polarization direction of the laser emitting light is parallel with the silicon optical chip incidence surface, and the laser emitting light passes through
Mutually put down with the silicon optical chip incidence surface polarization direction after the half-wave plate, Faraday rotation cylinder and the first polarizer
OK, end after once vibrating between the laser and the speculum.
2. optical module as claimed in claim 1, it is characterised in that also include：Deviate from the faraday positioned at the half-wave plate
Second polarizer of rotating cylinder side, the polarization direction of the polarization direction of second polarizer and the laser emitting light
It is parallel.
3. optical module as claimed in claim 1, it is characterised in that also include：Revolved positioned at the half-wave plate and the faraday
The 3rd polarizer between rotating cylinder, the polarization direction of the 3rd polarizer is the laser emitting light along the half-wave plate
The first polarizer direction is pointed to turn clockwise predetermined angle.
4. the optical module as described in claim any one of 1-3, it is characterised in that also include：Deviate from institute positioned at the half-wave plate
State the anti-reflection film of Faraday rotation cylinder side and/or first polarizer away from Faraday rotation cylinder side.
5. the optical module as described in claim any one of 1-3, it is characterised in that the half-wave plate, Faraday rotation cylinder
And first polarizer is coaxially disposed, and the optical axis direction and the angle of the direction of propagation of light of three are 4-8 degree.
6. optical module as claimed in claim 1, it is characterised in that also include：Standard on the laser light direction
Straight lens.
7. optical module as claimed in claim 6, it is characterised in that also include：Printing opacity pedestal；The collimation lens and described half
Wave plate, Faraday rotation cylinder and first polarizer are arranged on the printing opacity pedestal, and the silicon optical chip is located at
The printing opacity pedestal is away from the side of Faraday rotation cylinder.
8. optical module as claimed in claim 1, it is characterised in that the silicon optical chip includes grating coupler；The reflection
The reflected light of mirror is incided on the grating coupler.
9. optical module as claimed in claim 8, it is characterised in that the silicon optical chip also includes optical modulator；By described
The light of grating coupler is to the optical modulator outgoing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154682.7A CN106707534A (en) | 2016-12-14 | 2016-12-14 | Optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154682.7A CN106707534A (en) | 2016-12-14 | 2016-12-14 | Optical module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106707534A true CN106707534A (en) | 2017-05-24 |
Family
ID=58937308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611154682.7A Pending CN106707534A (en) | 2016-12-14 | 2016-12-14 | Optical module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106707534A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251426A (en) * | 1998-08-19 | 2000-04-26 | 富士通株式会社 | Optical device used as optical isolater, and optical amplifier and system including said optical device |
| CN102798989A (en) * | 2012-08-30 | 2012-11-28 | 深圳市艾格莱光电科技有限公司 | Faraday optical rotation method and device, and optical isolation method and device using Faraday optical rotation device |
| CN203799143U (en) * | 2014-03-20 | 2014-08-27 | 昂纳信息技术（深圳）有限公司 | Novel optical isolator |
| CN104813210A (en) * | 2014-10-14 | 2015-07-29 | 索尔思光电（成都）有限公司 | Optical transmitter and method for transmitting optical signal |
| CN105259623A (en) * | 2015-10-30 | 2016-01-20 | 武汉电信器件有限公司 | Laser and grating coupler packaging structure and method |
| CN106019496A (en) * | 2016-05-31 | 2016-10-12 | 武汉光迅科技股份有限公司 | Light source packaging structure, and positioning and coupling method thereof |
-
2016
- 2016-12-14 CN CN201611154682.7A patent/CN106707534A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251426A (en) * | 1998-08-19 | 2000-04-26 | 富士通株式会社 | Optical device used as optical isolater, and optical amplifier and system including said optical device |
| CN102798989A (en) * | 2012-08-30 | 2012-11-28 | 深圳市艾格莱光电科技有限公司 | Faraday optical rotation method and device, and optical isolation method and device using Faraday optical rotation device |
| CN203799143U (en) * | 2014-03-20 | 2014-08-27 | 昂纳信息技术（深圳）有限公司 | Novel optical isolator |
| CN104813210A (en) * | 2014-10-14 | 2015-07-29 | 索尔思光电（成都）有限公司 | Optical transmitter and method for transmitting optical signal |
| CN105259623A (en) * | 2015-10-30 | 2016-01-20 | 武汉电信器件有限公司 | Laser and grating coupler packaging structure and method |
| CN106019496A (en) * | 2016-05-31 | 2016-10-12 | 武汉光迅科技股份有限公司 | Light source packaging structure, and positioning and coupling method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 周希朗: "《微波技术与天线》", 30 September 2015, 东南大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101702072B (en) | Light projection engine apparatus | |
| CN1320380C (en) | Optical polarization beam combiner/splitter | |
| CN101852613B (en) | Light transceiving integrated device applied to fiber sensing | |
| CN109791255B (en) | Optical coupler comprising a Faraday rotator | |
| JP2018513556A5 (en) | ||
| CN105705907A (en) | Energy-efficient optic gyroscope devices | |
| JP6043228B2 (en) | Optical module and light irradiation device | |
| KR101354322B1 (en) | Laser light source device | |
| CN109154700B (en) | Optical coupling apparatus and method | |
| JP2011075739A (en) | Optical waveguide device | |
| EP3330778B1 (en) | Polarization independent optical isolator | |
| JP2001504947A (en) | Optical isolator | |
| US7039262B2 (en) | Depolarizer | |
| CN105404012A (en) | Double-machine high-luminous efficiency stereo projection system | |
| JP5429519B2 (en) | Reflective magneto-optical sensor | |
| CN106707534A (en) | Optical module | |
| CN205229577U (en) | High light efficiency stereoscopic projection system of duplex | |
| US6954307B2 (en) | Four-port PM circulator | |
| WO2021135960A1 (en) | Polarization splitting device, polarization splitting structure and projection device | |
| CN108153092A (en) | Reflection type optical modulation device, projecting apparatus and AR/VR displays | |
| CN110208969A (en) | A kind of optical circulator | |
| CN110011169A (en) | Self-frequency-doubling laser generating device and laser | |
| CN207502841U (en) | Stereoscopic display device | |
| Li et al. | An integrated high-extinction-ratio low-loss polarization rotator for silicon photonics across C+ L bands | |
| Li et al. | On-chip electrical modulation of phase shift between optical vortices with opposite topological charge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| 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: 20170524 |