CN110262056A - A kind of smooth filter, system and encapsulating structure - Google Patents
A kind of smooth filter, system and encapsulating structure Download PDFInfo
- Publication number
- CN110262056A CN110262056A CN201910652135.9A CN201910652135A CN110262056A CN 110262056 A CN110262056 A CN 110262056A CN 201910652135 A CN201910652135 A CN 201910652135A CN 110262056 A CN110262056 A CN 110262056A
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- filter
- optical
- light
- mems reflector
- optical fiber
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- 230000003287 optical effect Effects 0.000 claims abstract description 54
- 239000013307 optical fiber Substances 0.000 claims abstract description 42
- 239000006185 dispersion Substances 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
-
- 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
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
- G02B27/4244—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in wavelength selecting devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The present invention relates to light to filter field, and in particular to a kind of smooth filter, system and encapsulating structure.A kind of smooth filter, including the optical fiber collimator, optical filter and MEMS reflector set gradually, it further include the multiple input terminals and multiple output ends that optical fiber collimator one end is set, the MEMS reflector includes the first rotating shaft perpendicular to optical filter dispersion direction and the second shaft for being parallel to optical filter dispersion direction.A kind of encapsulating structure, including encapsulating housing, and it is integrally disposed in the intracorporal smooth filter of encapsulating shell.A kind of light filtering system, the light filtering system include the light filter, and the controller connecting with the MEMS reflector of light filter.The present invention passes through the light filter of compact design, has the characteristics that compact-sized, function is more complete, is highly suitable for integrated level height and compact-sized system design.
Description
Technical field
The present invention relates to light to filter field, and in particular to a kind of smooth filter, system and encapsulating structure.
Background technique
Tunable filter and attenuator: the dispersion element of tunable filter can be grating, liquid crystal or prism etc., dispersion member
Part is spatially separated by the different wavelength components of incident light, and output end selects the spectrum acquisition of certain a part to reach filtering function
Energy.When controllably changing the relative position of input terminal and output end during dispersion with certain mechanism, make the spectrum being received
Ingredient changes, that is, reaches the function of adjustable filtering.And adjustable damping is then between controllable change input light output light
All kinds of losses, such as the absorption of coupling loss, transmission loss, material etc..
It is also commercial using the tunable optical filtering (TOF) & adjustable attenuator (VOA) of MEMS-Grating structure.
But the two majority is respectively individual components, during combined use, it is big to occupy space, and consume is big, is unsatisfactory for
Existing optical system miniaturization, low-loss development trend；Meanwhile be able to achieve at present be single channel adjustable filtering &
Adjustable damping wants that the way for the adjustable algorithm routine for reaching multichannel is that superposition tunable filter uses.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide a kind of smooth filter,
System and encapsulating structure solve the adjustable filtering & adjustable damping of existing single channel, want the adjustable algorithm for reaching multichannel
Conventional way is that superposition tunable filter uses, and can generate and occupy that space is big, consume big problem.
The technical solution adopted by the present invention to solve the technical problems is: providing a kind of smooth filter, including successively sets
Optical fiber collimator, optical filter and the MEMS reflector set, further include be arranged in optical fiber collimator one end multiple input terminals and
Multiple output ends, the MEMS reflector include the first rotating shaft perpendicular to optical filter dispersion direction and are parallel to optical filter
Second shaft of dispersion direction；Wherein, optical signal is successively incident to optical filter after an input terminal, optical fiber collimator, warp
Optical filter dispersion is incident on MEMS reflector at the diffraction light with different angle of diffraction, and, the MEMS reflector
It is rotated around first rotating shaft and the second shaft, reflects the diffraction light of an angle of diffraction, be incident to using optical filter, optical fiber collimator
Corresponding output end.
Wherein, preferred version is: multiple input terminals are arranged in "-" type arrangement, and, multiple output ends are in
"-" type arrangement setting.
Wherein, preferred version is: multiple input terminals are connected to corresponding optical fiber respectively, multiple output end difference
It is connected to corresponding optical fiber.
Wherein, preferred version is: the optical filter is one of grating, liquid crystal and prism.
Wherein, preferred version is: the optical filter is transmission grating, and the angled setting of transmission grating is in optical fiber standard
Straight device and MEMS reflector, the dispersion angle of the transmission grating are all or part of towards MEMS reflector.
Wherein, preferred version is: multiple input terminals are arranged in "-" type arrangement is close, and, multiple outputs
End is in the close setting of "-" type arrangement.
Wherein, preferred version is: the MEMS reflector includes biaxial MEMS chip.
Wherein, preferred version is: being additionally provided with phase-plate between the optical filter and MEMS reflector.
The technical solution adopted by the present invention to solve the technical problems is: a kind of encapsulating structure, including encapsulating housing are provided,
And be integrally disposed in encapsulating housing and the light filter, further include with it is multiple enter to hold with corresponding defeated correspondence be connected to
Input optical fibre and multiple output optical fibres being connected to corresponding output end.
The technical solution adopted by the present invention to solve the technical problems is: providing a kind of light filtering system, it is characterised in that:
The light filtering system includes the light filter, and the controller connecting with the MEMS reflector of light filter,
The controller is according to control signal control MEMS reflector around first rotating shaft and the rotation angle of the second shaft.
The beneficial effects of the present invention are, compared with prior art, the present invention passes through the light filter of compact design,
The matching of different light-entering optical fibers and light-coming out optical fiber has the characteristics that compact-sized, function is more complete, be highly suitable for integrated level height and
Compact-sized system design, it is very big to save compared to the adjustable algorithm scheme for reaching multichannel using multiple filters
Cost；And adjustable filter function, optical path handoff functionality and adjustable damping function share an optical fiber collimator and realize, in addition to
Outside necessary splitting loss, other added losses are not introduced into, therefore system Insertion Loss can be advanced optimized；And it can further save
Save space reduces cost.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram of light filter of the present invention；
Fig. 2 is the structural schematic diagram of optical filter of the present invention；
Fig. 3 is the structural schematic diagram of MEMS reflector first embodiment of the present invention；
Fig. 4 is the structural schematic diagram of MEMS reflector second embodiment of the present invention；
Fig. 5 is the overlooking structure diagram of MEMS reflector of the present invention；
Fig. 6 is the structural schematic diagram of encapsulating structure of the present invention.
Specific embodiment
Now in conjunction with attached drawing, elaborate to presently preferred embodiments of the present invention.
As shown in Figures 1 to 5, the present invention provides a kind of preferred embodiment of smooth filter.
A kind of smooth filter, including the optical fiber collimator 110, optical filter 120 and MEMS reflector set gradually
130, it further include the multiple input terminals 210 and multiple output ends 220 that 110 one end of optical fiber collimator is set, the MEMS reflection
Device 130 includes the first rotating shaft 131 perpendicular to 120 dispersion direction 1101 of optical filter and is parallel to 120 dispersion side of optical filter
To 1101 the second shaft；Wherein, optical signal 11 is successively incident to light filtering after an input terminal 210, optical fiber collimator 110
Device 120 through 120 dispersion of optical filter at the diffraction light 111 with different angle of diffraction, and is incident on MEMS reflector 130, with
And the MEMS reflector 130 is rotated around first rotating shaft 131 and the second shaft 132, reflects (the letter of diffraction light 111 of an angle of diffraction
Claim reflected light signal 12), corresponding output end 220 is incident to using optical filter 120, optical fiber collimator 110.Multiple light letters
Numbers 11 are incident in the smooth filter by different input terminals 210, carry out uniform filtering, compared to using multiple filters
Reach the adjustable algorithm scheme of multichannel, it is very big to have saved cost, other than necessary splitting loss, it is not introduced into other
Added losses, therefore system Insertion Loss can be advanced optimized, it can further save space.
Wherein, input terminal 210 is set as X, and output end 220 is set as Y, and the smooth filter is filtered simultaneously in light,
The optical path matching for carrying out X*Y, is able to achieve controlled attenuator (VOA) the & tunable optical filtering (TOF) in X*Y channel.Preferably, may be used
It is integrated in a smooth filter kind as different channels, is realized integrally disposed.
Specifically, optical signal 11 is incident to optical fiber collimator 110 from an input terminal 210, after the collimation of optical fiber collimator 110
It projects and is incident to optical filter 120；And through 120 dispersion of optical filter, the diffraction light 111 with different angle of diffraction is formed,
Wherein dispersion direction 1101 refers to and vertically scatters the direction in direction with dispersion middle line and along angle, all or part of to have difference
The diffraction light 111 of the angle of diffraction is incident in MEMS reflector 130；And MEMS reflector 130 is rotated around first rotating shaft 131, it will
Perpendicular to the 111 reflected light filter 120 of diffraction light on 130 surface of MEMS reflector, with diffraction light 111 due to angle four
It dissipates, as without (13,14) are used up, realizes the function of adjustable filtering；MEMS reflector 130 is rotated around the second shaft 132, will be vertical
One reflection inclination angle reflected light filter 120 of the selection of diffraction light 111 in 130 surface of MEMS reflector, reflection inclination angle refers to edge
The tilt angle in the direction of first rotating shaft 131, can be zero degree；The diffraction light 111 being reflected back by MEMS reflector 130,
It is incident to corresponding output end 220 by optical filter 120, optical fiber collimator 110, realizes the function of optical path switching and adjustable damping
Energy.
It is of course also possible to first rotated around the rotation of the second shaft 132 further around first rotating shaft 131, and, above-mentioned process is directed to
The case where multiple 210/ output ends 220 of the input terminal are in "-" type arrangement setting, if multiple 210/ output ends of the input terminal
220 be not in array arrangement setting in "-" type arrangement setting or 210/ output end 220 of multiple input terminals, needs to finely tune
Around first rotating shaft 131 and the rotation angle of the second shaft 132, to ensure to need diffraction light 111 to be incident to corresponding output end 220
In；Preferably, multiple input terminals 210 are closely arranged setting in "-" type, and multiple output ends 220 are in that "-" type is close
Arrangement setting.
In the present embodiment, it can refer to Fig. 3 to Fig. 5, the MEMS reflector 130 includes biaxial MEMS chip, can be distinguished
It rotates around first rotating shaft 131, and is rotated around the second shaft 132, first rotating shaft 131 and the second shaft 132 are vertically arranged.
In the present embodiment, multiple output ends 220 respectively with corresponding optical fiber connection and multiple input terminals
210 are also connected to corresponding optical fiber respectively, specifically refer to Fig. 6, provide a kind of encapsulating structure, including encapsulating housing 300, and
The light filter being integrally disposed in encapsulating housing 300, further include multiple connections with corresponding input terminal 210 input optical fibres and
Multiple output optical fibres being connected to corresponding output end 220.
Firstly, optical signal 11 is exported by corresponding input optical fibre, and optical fiber collimator is incident to by input terminal 210
110；And diffraction light 111 is incident to corresponding output end 220 by optical fiber collimator 110, and passes through corresponding output optical fibre
Output, into the coupling loss of different output optical fibres and the diffraction light 111 of change output.And the envelope of the encapsulating structure
Dress form can be diversified, includes but are not limited to To-can encapsulation and Butterfly encapsulation.For example, being encapsulated by To-can, first
MEMS reflector 130 is arranged on TO tube socket, is electrically connected by the pin of TO tube socket with the pin of MEMS reflector 130, it is real
Now control；And the other structures of light filter, if optical fiber collimator 110, optical filter 120 are arranged in TO pipe cap,
TO pipe cap further includes the cap mouth for allowing input optical fibre and output optical fibre to pass in and out, and hermetically sealed.
In the present embodiment, the optical filter 120 is one of grating, liquid crystal and prism, as dispersion element, color
Dissipate element the different wavelength components of incident light are spatially separated.
In the present embodiment, the optical filter 120 is transmission grating, and the angled setting of transmission grating is in optical fiber standard
Straight device 110 and MEMS reflector 130, the dispersion angle of the transmission grating are all or part of towards MEMS reflector 130；It is excellent
Selection of land, the grating be correspondingly arranged in 30~60 degree angles with optical fiber collimator 110 and the grating be in 30~60 degree of angles and
MEMS reflector 130 is correspondingly arranged, and certainly, is specifically needed to see that its dispersion angle determines, convenient for compression whole interior volume, is realized
Miniaturization Design.
In the present embodiment, phase-plate 140 is additionally provided between the optical filter 120 and MEMS reflector 130.Phase-plate
140 be optical system component part, and in the regional area on glass plate or lens (usually annulus), plating one layer has
The film layer of certain thickness and refractive index makes the light through the region than passing through the light phase in non-coating area in advance or lagging.
In the present embodiment, a kind of light filtering system of body is gone back, the light filtering system includes light filter, Yi Jiyu
The controller that the MEMS reflector 130 of light filter connects, the controller control MEMS reflector 130 according to control signal
Around first rotating shaft 131 and the rotation angle of the second shaft 132, wherein optical signal 11 is successively quasi- by input terminal 210, optical fiber
It is incident to optical filter 120 after straight device 110, through 120 dispersion of optical filter at the diffraction light 111 with different angle of diffraction, is incorporated to
It is incident upon on MEMS reflector 130, and, the MEMS reflector 130 is rotated around first rotating shaft 131 and the second shaft 132, reflection
The diffraction light 111 of one angle of diffraction is incident to corresponding output end 220 using optical filter 120, optical fiber collimator 110.
As described above, only preferred embodiment is not intended to limit the scope of the present invention, Fan Yibenfa
Equivalent change or modification made by bright claim is all that the present invention is covered.
Claims (10)
1. a kind of smooth filter, it is characterised in that: including optical fiber collimator, optical filter and the MEMS reflection set gradually
Device, further includes the multiple input terminals and multiple output ends that optical fiber collimator one end is arranged in, and the MEMS reflector includes vertical
In optical filter dispersion direction first rotating shaft and be parallel to the second shaft of optical filter dispersion direction；Wherein, optical signal according to
It is secondary to be incident to optical filter after an input terminal, optical fiber collimator, through optical filter dispersion at spreading out with different angle of diffraction
Light is penetrated, and is incident on MEMS reflector, and, the MEMS reflector is rotated around first rotating shaft and the second shaft, reflection one
The diffraction light of the angle of diffraction is incident to corresponding output end using optical filter, optical fiber collimator.
2. smooth filter according to claim 1, it is characterised in that: multiple input terminals are set in "-" type arrangement
It sets, and, multiple output ends are in "-" type arrangement setting.
3. smooth filter according to claim 1 or 2, it is characterised in that: multiple input terminals respectively with it is corresponding
Optical fiber connection, multiple output ends are connected to corresponding optical fiber respectively.
4. smooth filter according to claim 1, it is characterised in that: the optical filter is grating, liquid crystal and prism
One of.
5. smooth filter according to claim 1, it is characterised in that: the optical filter is transmission grating, described
The angled setting of grating is penetrated in optical fiber collimator and MEMS reflector, all or part of equal court of the dispersion angle of the transmission grating
To MEMS reflector.
6. smooth filter according to claim 2, it is characterised in that: multiple input terminals are close in "-" type arrangement
Setting, and, multiple output ends are in the close setting of "-" type arrangement.
7. smooth filter according to claim 1, it is characterised in that: the MEMS reflector includes biaxial MEMS core
Piece.
8. according to claim 1, light filter described in 5 or 7, it is characterised in that: the optical filter and MEMS reflector
Between be additionally provided with phase-plate.
9. a kind of encapsulating structure, it is characterised in that: including encapsulating housing, and be integrally disposed in encapsulating housing and as right is wanted
Seek any light filter of 1-8, further include with it is multiple enter to hold with corresponding defeated correspondence the input optical fibre being connected to and it is multiple and
The output optical fibre of corresponding output end connection.
10. a kind of light filtering system, it is characterised in that: the light filtering system includes light a method as claimed in any one of claims 1-8
Filter, and the controller connecting with the MEMS reflector of light filter, the controller are controlled according to control signal
MEMS reflector around first rotating shaft and the rotation angle of the second shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652135.9A CN110262056A (en) | 2019-07-18 | 2019-07-18 | A kind of smooth filter, system and encapsulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652135.9A CN110262056A (en) | 2019-07-18 | 2019-07-18 | A kind of smooth filter, system and encapsulating structure |
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| Publication Number | Publication Date |
|---|---|
| CN110262056A true CN110262056A (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910652135.9A Pending CN110262056A (en) | 2019-07-18 | 2019-07-18 | A kind of smooth filter, system and encapsulating structure |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101263408A (en) * | 2005-08-03 | 2008-09-10 | 卡佩拉光子学公司 | Method of automatic adjustment of dither amplitude of MEMS mirror arrays |
| CN202221483U (en) * | 2011-08-26 | 2012-05-16 | 浙江工业大学 | Four-fiber optical fiber collimator |
| CN102768385A (en) * | 2011-05-06 | 2012-11-07 | 菲尼萨公司 | Optical channel monitor |
| CN106405745A (en) * | 2016-12-13 | 2017-02-15 | 武汉光迅科技股份有限公司 | Attenuation adjustable broadband wavelength tunable filter |
| CN107346989A (en) * | 2016-05-06 | 2017-11-14 | 福州高意通讯有限公司 | A kind of multi-channel laser wavelength dependence monitor and monitoring method |
| CN206757098U (en) * | 2017-06-13 | 2017-12-15 | 福州高意通讯有限公司 | A kind of MEMS-type can adjust optical filter |
| CN206990852U (en) * | 2017-04-27 | 2018-02-09 | 上海中科创欣通讯设备有限公司 | The adjustable attenuator that integral type monitors in real time |
| CN209946542U (en) * | 2019-07-18 | 2020-01-14 | 昂纳信息技术（深圳）有限公司 | Optical filtering device, system and packaging structure |
-
2019
- 2019-07-18 CN CN201910652135.9A patent/CN110262056A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101263408A (en) * | 2005-08-03 | 2008-09-10 | 卡佩拉光子学公司 | Method of automatic adjustment of dither amplitude of MEMS mirror arrays |
| CN102768385A (en) * | 2011-05-06 | 2012-11-07 | 菲尼萨公司 | Optical channel monitor |
| CN202221483U (en) * | 2011-08-26 | 2012-05-16 | 浙江工业大学 | Four-fiber optical fiber collimator |
| CN107346989A (en) * | 2016-05-06 | 2017-11-14 | 福州高意通讯有限公司 | A kind of multi-channel laser wavelength dependence monitor and monitoring method |
| CN106405745A (en) * | 2016-12-13 | 2017-02-15 | 武汉光迅科技股份有限公司 | Attenuation adjustable broadband wavelength tunable filter |
| CN206990852U (en) * | 2017-04-27 | 2018-02-09 | 上海中科创欣通讯设备有限公司 | The adjustable attenuator that integral type monitors in real time |
| CN206757098U (en) * | 2017-06-13 | 2017-12-15 | 福州高意通讯有限公司 | A kind of MEMS-type can adjust optical filter |
| CN209946542U (en) * | 2019-07-18 | 2020-01-14 | 昂纳信息技术（深圳）有限公司 | Optical filtering device, system and packaging structure |
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Address after: No.35 Cuijing Road, Pingshan District, Shenzhen City, Guangdong Province Applicant after: Ona Technology (Shenzhen) Group Co.,Ltd. Address before: No.35 Cuijing Road, Pingshan District, Shenzhen City, Guangdong Province Applicant before: O-NET COMMUNICATIONS (SHENZHEN) Ltd. |
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