CN109164606A - A kind of fiber acouso optic device with high-performance stability - Google Patents
A kind of fiber acouso optic device with high-performance stability Download PDFInfo
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- CN109164606A CN109164606A CN201811093811.5A CN201811093811A CN109164606A CN 109164606 A CN109164606 A CN 109164606A CN 201811093811 A CN201811093811 A CN 201811093811A CN 109164606 A CN109164606 A CN 109164606A
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- Prior art keywords
- fiber
- acouso
- optic device
- optical fibre
- optic
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/11—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
- G02F1/125—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves in an optical waveguide structure
Abstract
The present invention relates to optical devices to belong to photoelectron technical field, specially a kind of fiber acouso optic device with high-performance stability in particular for the acousto-optical device of field fiber, and the fiber acouso optic device includes input optical fibre, can, output optical fibre；Input optical fibre and output optical fibre are connected to the both ends of can；Mounting plate is fixed in can；It is successively fixed with input collimater, acousto-optic crsytal and output collimater on a mounting board；Input optical fibre is connect with input collimater, and output collimater is connect with output optical fibre.Setting of the present invention due to using mounting plate, can effectively eliminate the influence of crust deformation of can, solve the problems, such as that performance declines fiber acouso optic device after a period of use.
Description
Technical field
The present invention relates to optical devices to belong to photoelectron technical field in particular for the acousto-optical device of field fiber, tool
Body is a kind of fiber acouso optic device with high-performance stability.
Background technique
Fiber acouso optic device is the abbreviation of fiber coupling acousto-optical device, it is that optical fiber and acousto-optical device are fused together
A kind of photoelectron device.Fiber acouso optic device mainly have single mode (multimode/polarization-maintaining) optical fiber acousto-optic frequency shifters, single mode (multimode/
Polarization-maintaining) optical fiber acousto-optic modulator, single mode (multimode/polarization-maintaining) optical fiber acoustooptic switch, single mode (multimode/polarization-maintaining) optical fiber acousto-optic Q-switching,
Single mode (multimode/polarization-maintaining) optical fiber acousto-optic turnable filter, single mode (multimode/polarization-maintaining) optical fiber acousto-optic menu device, and driver
Integrated fiber acousto-optical device integrated with device etc..Fiber acouso optic device uses all solidstate light path design, eliminates
Complicated optical path adjusting, it is easy to use, it is widely applied in recent years.
The basic structure of fiber acouso optic device is all to install two collimators with tail optical fiber at the both ends of acousto-optic crsytal at present
(input collimator and output collimator).Specific method is: in a can, acousto-optic crsytal being pasted onto metal with glue
Bottom in box, then two collimators with tail optical fiber are pasted the bottoms of (or laser welding) in can, light along optical fiber from
Input collimator enters acousto-optic crsytal, enters back into output collimator, and the tail optical fiber output carried along output collimator.
Can has the generation of stress in process, and the coefficient of expansion of can is bigger, is using
Cheng Zhong, the variation of environment temperature can make can, and deformation occurs, but since single mode optical fiber and the core diameter of polarization-maintaining are very thin (usually only
Have 9 microns), even if can deformation, which only allows optical path to offset by 1 micron, can all generate very big influence, this influences usual table
Now increase for the insertion loss of fiber acouso optic device.
In order to avoid deformation occurs for can, the method taken at present has: increasing the thickness of can shell, to can
It is annealed and eliminates stress as far as possible, the lesser metal material of the coefficient of expansion is selected to make can etc..These methods can reduce but
It cannot be inherently eliminated the influence of crust deformation of can shell, because there are one heat sinking functions (acousto-optic crsytal for can
Heat is transmitted in machine shell by can), it is necessary to screw can securely installation machine shell on.Screw
Installation may cause can deformation, and machine shell can also with the deformation (or deformation of other external force generation) of environment temperature
Can deformation can be will lead to, can deformation can make the performance of fiber acouso optic device decline (usually insertion loss increase).
This is the main reason for user has found the decline of fiber acouso optic device performance after a period of use.
Summary of the invention
In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a kind of raising fiber acouso optic devices
The method of stabilizability.
To achieve the goals above, The technical solution adopted by the invention is as follows:
Increase a very small mounting plate of thermal expansion coefficient in the can of packaged fiber acousto-optical device, in mounting plate
Upper fixed acousto-optic crsytal and collimator.Have between mounting plate and can one layer of buffer layer (indium foil piece or thermally conductive silicon wafer), buffers
It is pasted between layer and mounting plate with the lower silicon rubber of hardness, is also to use the lower silicon of hardness between buffer layer and can bottom
Rubber is pasted.
Based on this, a kind of fiber acouso optic device with high-performance stability of the invention, the fiber acouso optic device packet
Include input optical fibre, can, output optical fibre；Input optical fibre and output optical fibre are connected to the both ends of can；
Mounting plate is fixed in can；It is successively fixed with input collimater, acousto-optic crsytal and defeated on a mounting board
Outlet collimator；Input optical fibre is connect with input collimater, and output collimater is connect with output optical fibre.
Preferably, buffer layer is equipped between the mounting plate and can, the mounting plate and can pass through glue respectively
Layer is connected with buffer layer.
Preferably, the glue-line is the silicon rubber that thickness is less than 0.1mm.
Preferably, the mounting plate with a thickness of 5mm~10mm.
Preferably, the material of the buffer layer is indium foil piece or thermally conductive silicon wafer.
Preferably, the buffer layer with a thickness of 0.2mm~0.5mm.
Preferably, the material of the mounting plate is ceramic-like materials, specially silicon carbide, aluminium nitride, boron nitride, aluminium oxide
Or beryllium oxide.
Preferably, the acousto-optic crsytal includes acousto-optic medium, bonded layer, energy converter and table electrode；It is situated between in the acousto-optic
Matter upper surface is provided with bonded layer, is equipped with energy converter on the bonded layer, which is provided with table electrode.
Compared with prior art, the invention has the following beneficial effects:
1, mounting plate is the thermal expansion coefficient very small very high ceramic-like materials of thermal conductivity (such as silicon carbide, aluminium nitride, nitrogen
Change boron, aluminium oxide and beryllium oxide etc.) production, 3 times lower than common aluminium alloy of thermal expansion coefficient or more, therefore deformation
Probability wants much lower.
2, mounting plate is a plate, will not carry out complicated intermetallic composite coating as production can, not process and answer
The generation of power, also there is no need to eliminate the annealing process of stress.
3, acousto-optic crsytal and collimator (including input collimater and output collimater) are to fix on a mounting board,
There is buffer layer between mounting plate and package metals box, the deformation of can is eliminated by buffer layer, this has just been inherently eliminated gold
The influence of crust deformation for belonging to box, solves the problems, such as that performance decline occurs in fiber acouso optic device after a period of use.
4, mounting plate and buffer layer are all that the very high material of thermal conductivity makes, and will not influence the heat dissipation of acousto-optic crsytal.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure, 1, input optical fibre, 2, can, 3, mounting plate, 4, input collimater, 5, incident light, 6, acousto-optic crsytal,
7, acousto-optic medium, 8, diffraction light, 9, output collimater, 10, mounting hole, 11, output optical fibre, 12,0 grades of light, 13, energy converter,
14, table electrode, 15, matching network, 16, radio frequency socket, 17, bonded layer, 18,20 glue-lines, 19, buffer layer.
Specific embodiment
To make being more clearly understood for the object, technical solutions and advantages of the present invention expression, with reference to the accompanying drawing and specifically
Case study on implementation is described in further details the present invention.
A kind of fiber acouso optic device with high-performance stability of the present invention, as shown in Figure 1, the fiber acouso optic device packet
Input optical fibre 1, can 2 and output optical fibre 11 are included, input optical fibre 1 and output optical fibre 11 are connected to the both ends of can 2；
It is equipped with mounting plate 3 in can 2, is successively fixed with input collimater 4,6 and of acousto-optic crsytal on mounting plate 3
Output collimater 9；Input collimater 4, acousto-optic crsytal 6 and output collimater 9 stick with glue on mounting plate 3.Input
Optical fiber 1 is connect with input collimater 4, and output collimater 9 is connect with output optical fibre 11.
Its mesoglea 18 and glue-line 20 are the silicon rubber that thickness is less than 0.1mm.
The thickness d 2 of the buffer layer 19 is 0.2mm~0.5mm.The material of the buffer layer 19 is indium foil piece or thermal conductive silicon
Piece.
The thickness d 1 of mounting plate 3 is 5mm~10mm.The material of mounting plate 3 is ceramic-like materials, and using is thermal expansion system
The very small very high ceramic-like materials of thermal conductivity of number；Specially silicon carbide, aluminium nitride, boron nitride, aluminium oxide or beryllium oxide.
Acousto-optic crsytal 6 is mainly made of acousto-optic medium 7, bonded layer 17, energy converter 13, table electrode 14.It is situated between in the acousto-optic
7 upper surface of matter is provided with bonded layer 17, is equipped with energy converter 13 on the bonded layer 17, which is provided with table electricity
Pole 14.
Glue-line 20, buffer layer 19 and glue-line 18 are successively arranged between mounting plate 3 and can 2.Mounting plate 3 passes through glue-line 20
It is connect with buffer layer 19；Can 2 is connect by glue-line 18 with buffer layer 19.
Alternatively, there are two mounting holes 10 for can 2, are built up at the diagonal position of can 2；For
Fixed can 2.
Wherein, fiber acouso optic device of the invention is similar with the course of work of general fiber acouso optic device, specifically such as
Under:
The light that external light source issues is input to input optical fibre 1 and after the transmission of input optical fibre 1 by input collimater 4
Output, the light exported from input collimater 4, i.e., incident light 5, which is incident at a certain angle on acousto-optic crsytal 6, is formed by folding
It penetrates in rate grating, Bragg diffraction occurs and generates first-order diffraction light 8, first-order diffraction light 8 is received by output collimater 9, level-one
Diffraction light 8 is from 9 input to output optical fiber 11 of output collimater and by the output of output optical fibre 11 to outside.Wherein, 0 grade of light 12
It can be directly entered next fiber acouso optic device, the present invention is not specifically limited in this embodiment.
It is permanent in use, general fiber acouso optic device can variation due to environment temperature and other influences make
Deformation occurs for can 2, once deformation occurs for can 2, optical path will shift, and this offset will generate very greatly
Influence, this influence be usually expressed as fiber acouso optic device insertion loss increase.And due to using structure of the invention
Design, input collimater 4, acousto-optic crsytal 6 and output collimater 9 are fixed on mounting plate 3, mounting plate 3 and encapsulation
There is buffer layer 19 between can 2.Mounting plate 3 is ceramic-like materials, and hardness is high, thermal expansion coefficient is small, performance is stable, therefore
Its own will not deformation occurs.Buffer layer 19 is flexible material, and the deformation that can 2 generates will be eliminated by buffer layer 19, no
It can effectively be transmitted on mounting plate 3, a possibility that this just eliminates mounting plate 3 from the root deformation occurs, solve optical fiber sound
There is the problem of performance decline after a period of use in optical device, can be improved the stability of fiber acouso optic device.
The above embodiment of the present invention is only example to illustrate the invention, and is not to implementation of the invention
The restriction of mode.For those of ordinary skill in the art, other can also be made not on the basis of the above description
With the variation and variation of form.Here all embodiments can not be exhaustive.It is all to belong to technical solution of the present invention
Changes and variations that derived from are still in the scope of protection of the present invention.
Claims (8)
1. a kind of fiber acouso optic device with high-performance stability, the fiber acouso optic device include input optical fibre, can,
Output optical fibre；Input optical fibre and output optical fibre are connected to the both ends of can；
It is characterized in that, being fixed with mounting plate in can；It is brilliant that it is successively fixed with input collimater, acousto-optic on a mounting board
Body and output collimater；Input optical fibre is connect with input collimater, and output collimater is connect with output optical fibre.
2. a kind of fiber acouso optic device with high-performance stability according to claim 1, which is characterized in that the peace
Buffer layer is equipped between loading board and can, the mounting plate passes through glue-line with can respectively and is connected with buffer layer.
3. a kind of fiber acouso optic device with high-performance stability according to claim 2, which is characterized in that the glue
Layer is the silicon rubber that thickness is less than 0.1mm.
4. a kind of fiber acouso optic device with high-performance stability according to claim 2, which is characterized in that the peace
Loading board with a thickness of 5mm~10mm.
5. a kind of fiber acouso optic device with high-performance stability according to claim 2, which is characterized in that described slow
The material for rushing layer is indium foil piece or thermally conductive silicon wafer.
6. a kind of fiber acouso optic device with high-performance stability according to claim 2, which is characterized in that described slow
Rush layer with a thickness of 0.2mm~0.5mm.
7. a kind of fiber acouso optic device with high-performance stability according to claim 1, which is characterized in that the peace
The material of loading board is ceramic-like materials, specially silicon carbide, aluminium nitride, boron nitride, aluminium oxide or beryllium oxide.
8. a kind of fiber acouso optic device with high-performance stability according to claim 1, which is characterized in that the sound
Luminescent crystal includes acousto-optic medium, bonded layer, energy converter and table electrode；The acousto-optic medium upper surface is provided with bonded layer,
Energy converter is installed on the bonded layer, which is provided with table electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093811.5A CN109164606A (en) | 2018-09-19 | 2018-09-19 | A kind of fiber acouso optic device with high-performance stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093811.5A CN109164606A (en) | 2018-09-19 | 2018-09-19 | A kind of fiber acouso optic device with high-performance stability |
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| Publication Number | Publication Date |
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| CN109164606A true CN109164606A (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811093811.5A Pending CN109164606A (en) | 2018-09-19 | 2018-09-19 | A kind of fiber acouso optic device with high-performance stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133940A (en) * | 2019-05-20 | 2019-08-16 | 中国电子科技集团公司第二十六研究所 | A kind of acousto-optic deflection device device improving laser scanning angle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6021025A (en) * | 1983-07-15 | 1985-02-02 | Matsushita Electric Ind Co Ltd | Acoustooptic device |
| JPS60101518A (en) * | 1983-11-09 | 1985-06-05 | Matsushita Electric Ind Co Ltd | Acoustooptic device |
| CN101226317A (en) * | 2006-12-14 | 2008-07-23 | Jds尤尼弗思公司 | Small optical package having multiple optically aligned soldered elements therein |
| CN111630948B (en) * | 2008-10-31 | 2013-03-13 | 中国电子科技集团公司第二十六研究所 | Optical fiber coupling input and output acousto-optic device |
| CN104280824A (en) * | 2014-10-27 | 2015-01-14 | 中国电子科技集团公司第二十六研究所 | Polarization maintaining optical fiber coupling acousto-optic device with high polarization extinction ratio |
| CN205281057U (en) * | 2015-09-01 | 2016-06-01 | 江西飞信光纤传感器件有限公司 | Lithium niobate modulation device of gas tightness encapsulation |
| CN207133463U (en) * | 2017-04-10 | 2018-03-23 | 福建华科光电有限公司 | A kind of light-barrier type MEMS adjustable optical attenuators of compact high reliability |
-
2018
- 2018-09-19 CN CN201811093811.5A patent/CN109164606A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6021025A (en) * | 1983-07-15 | 1985-02-02 | Matsushita Electric Ind Co Ltd | Acoustooptic device |
| JPS60101518A (en) * | 1983-11-09 | 1985-06-05 | Matsushita Electric Ind Co Ltd | Acoustooptic device |
| CN101226317A (en) * | 2006-12-14 | 2008-07-23 | Jds尤尼弗思公司 | Small optical package having multiple optically aligned soldered elements therein |
| CN111630948B (en) * | 2008-10-31 | 2013-03-13 | 中国电子科技集团公司第二十六研究所 | Optical fiber coupling input and output acousto-optic device |
| CN104280824A (en) * | 2014-10-27 | 2015-01-14 | 中国电子科技集团公司第二十六研究所 | Polarization maintaining optical fiber coupling acousto-optic device with high polarization extinction ratio |
| CN205281057U (en) * | 2015-09-01 | 2016-06-01 | 江西飞信光纤传感器件有限公司 | Lithium niobate modulation device of gas tightness encapsulation |
| CN207133463U (en) * | 2017-04-10 | 2018-03-23 | 福建华科光电有限公司 | A kind of light-barrier type MEMS adjustable optical attenuators of compact high reliability |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133940A (en) * | 2019-05-20 | 2019-08-16 | 中国电子科技集团公司第二十六研究所 | A kind of acousto-optic deflection device device improving laser scanning angle |
| CN110133940B (en) * | 2019-05-20 | 2022-08-05 | 中国电子科技集团公司第二十六研究所 | Acousto-optic deflector device for improving laser scanning angle |
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