CN110471198A - A kind of adjustable light wave-filter of TO encapsulation - Google Patents
A kind of adjustable light wave-filter of TO encapsulation Download PDFInfo
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- CN110471198A CN110471198A CN201810448783.8A CN201810448783A CN110471198A CN 110471198 A CN110471198 A CN 110471198A CN 201810448783 A CN201810448783 A CN 201810448783A CN 110471198 A CN110471198 A CN 110471198A
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- Prior art keywords
- etalon
- group
- filter
- pin
- support base
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- 238000005538 encapsulation Methods 0.000 title claims abstract description 14
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical group CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims abstract description 72
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims description 12
- 239000013307 optical fiber Substances 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 241000218202 Coptis Species 0.000 claims description 4
- 235000002991 Coptis groenlandica Nutrition 0.000 claims description 4
- 238000010009 beating Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 11
- 238000003780 insertion Methods 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract description 5
- 230000001419 dependent effect Effects 0.000 abstract description 4
- 230000010287 polarization Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- GBYFRWZNEYJWAD-VTWSTLNFSA-N (3S,6S,12S,15S,21S,24S,30S,33S)-3,12,21,30-tetrabenzyl-1,4,10,13,19,22,28,31-octazapentacyclo[31.3.0.06,10.015,19.024,28]hexatriacontane-2,5,11,14,20,23,29,32-octone Chemical compound O=C1N[C@@H](Cc2ccccc2)C(=O)N2CCC[C@H]2C(=O)N[C@@H](Cc2ccccc2)C(=O)N2CCC[C@H]2C(=O)N[C@@H](Cc2ccccc2)C(=O)N2CCC[C@H]2C(=O)N[C@@H](Cc2ccccc2)C(=O)N2CCC[C@@H]12 GBYFRWZNEYJWAD-VTWSTLNFSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 101150014352 mtb12 gene Proteins 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
- G02F1/0147—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 thermo-optic effects
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention relates to optical filter part fields, disclose a kind of adjustable light wave-filter of TO encapsulation, including input terminal, output end, one TO pedestal comprising PIN pin, one group of tunable etalon group made of thermo-sensitive material, the TO pedestal is equipped with the MEMS mirror piece and support base group of an adjustable angle, each support base height of the support base group is different, each etalon of the etalon group is respectively arranged in each support base, adding thermal resistance film is coated on the etalon, and it is electrically connected respectively with the PIN pin on the TO pedestal, the PIN pin is electrically connected with a heating controller, the temperature of the etalon is heated by heating controller control, to realize thermal tuning etalon, a TO pipe cap is additionally provided on the TO pedestal, by the reflecting optics It is packaged in pipe cap with the etalon group, the input terminal and output end are connect with the pipe cap top.Beneficial effects of the present invention are more, small in size, the at low cost advantage of function, and optical path is short, Polarization Dependent Loss is low, Insertion Loss consistency is good.
Description
Technical field
The present invention relates to the adjustable light wave-filters that optical filter part field more particularly to a kind of TO encapsulate.
Background technique
The technology for being presently available for adjustable light wave-filter is more, and tunable filtering technology mainly using the interference of light or is spread out
Effect is penetrated to realize selectable filtering.It particularly may be divided into acousto-optic tunable filter type, fiber bragg grating type, F-P lumen type
With Thin Film Filter type etc..Wherein, acousto-optic TOF changes waveguide index period-producer grating, tuning speed using acoustooptical effect
Degree is fast, but manufacturing cost is high, and adjacent channel isolation is poor, is not suitable for dense wave division multipurpose dwdm system.Optical fiber light
Grid-type TOF utilizes optical fiber Bragg diffraction characteristic, and stress, bandwidth and adjacency channel isolation are adjusted by control temperature change
Degree is all preferable, can be used for dwdm system, but its tuning range is little, is easy to be influenced by external environment, long-time stability
It is not good enough, it is in fact all not carried out practical engineering application always.The characteristics of TOF of motor tuning angle based on TFF, is into
This is higher, and long-term reliability is poor；The fine TOF of the available reliability of TOF based on grating and MEMS mirror, but its material and
Packaging cost is all higher；And the TOF of tuning F-P cavity is used to have principle simple, encapsulate the characteristics of easily realizing.
The Raw material processing and element package technology of TOF based on F-P cavity type is an important factor for influencing its cost.Tuning
F-P cavity obtains having for tunable optic filter comparative maturity and controls two optical fiber using PZT similar to MICRO-OPTICS company
The distance of end face realizes the function of control filter center wavelength.Although the available tuning range of encapsulation of this scheme is big
TOF, but structure is complex, realizes that difficulty is big, so price is higher.And merely using the mode of thermal tuning solid etalon
The disadvantage is that tuning range is narrow, although such as AEGIS FILTER itself can accomplish there was only one in very wide wave-length coverage
A unimodal output, but the temperature range that realize that broad tuning range then needs to change is very wide, such as to realize the tuning model of 5THz
It encloses, about 500 degree of the temperature change value needed, this can hardly be realized.It is very that the filter for filtering out ASE noise, which does not need waveform,
Good flat-top, the filter shape of Gaussian can be met the requirements, but its requirement to volume is very stringent, it is desirable that can be encapsulated in
In 100Gb/s pluggable light transceiving module CFP2 or CFP4.
Summary of the invention
The purpose of the present invention is to provide a kind of adjustable light wave-filters of TO encapsulation, have lower hot crosstalk, environment
Stability is good, high reliablity, and the advantage that tuned speed is fast, reproducible.
In order to achieve the above object, the technical solution of the present invention is as follows: a kind of adjustable light wave-filter of TO encapsulation, feature
It is to include input, output end, a TO pedestal comprising PIN pin, one group of tunable mark made of thermo-sensitive material
Quasi- tool group, the TO pedestal are equipped with the MEMS mirror piece and support base group of an adjustable angle, the support base group
Each support base height it is different, each etalon of the etalon group is respectively arranged in each support base, on the etalon
It is coated with adding thermal resistance film, and is electrically connected respectively with the PIN pin on the TO pedestal, the PIN pin and a heating controller
Electrical connection heats the temperature of the etalon by heating controller control, thus realize thermal tuning etalon, the TO
Be additionally provided with a TO pipe cap on pedestal, the reflecting optics and the etalon group be packaged in pipe cap, the input terminal and
Output end is connect with the pipe cap top.
Further, the etalon is equipped with the thermistor for detecting the etalon temperature, the temperature-sensitive electricity
Resistance is connect by the PIN pin on the TO pedestal with control circuit board, the adding thermal resistance film root after energization, on the etalon
Independent heated for controlling temperature is carried out to each etalon according to needs, the thermistor can detect the actual temperature of each etalon, and
The control circuit board is fed back to, the two forms a feedback loop, to realize the accurate temperature controlling to etalon.
Further, the support base group include at least two support bases, the difference in height of two support bases be greater than or
Equal to 0.3mm, the tunable etalon group includes at least two etalons.
Further, the input/output terminal is a double-fiber collimator.
Further, the input/output terminal is an optical circulator.
Further, it has angle between the light pass surface and reflecting surface of the etalon group, the angle and double optical fiber
The input-output optical fiber angle of collimator matches, between 2 ° ~ 6 °.
Further, each support base is made of low thermal conductivity material.
Further, the material of the etalon is silicon.
Further, the etalon is connected by way of beating gold thread with the PIN pin.
Beneficial effects of the present invention are more, small in size, the at low cost advantage of function, and optical path is short, Polarization Dependent Loss
It is low, Insertion Loss consistency is good.
Detailed description of the invention
Fig. 1 is filter TO package structure diagram of the present invention；
Fig. 2 is one schematic diagram of internal structure of filter embodiment of the present invention；
Fig. 3 is optical element distribution schematic diagram on one TO pedestal of embodiment；
Fig. 4 is two schematic diagram of internal structure of filter embodiment of the present invention.
Attached drawing mark: 10.TO pedestal；20.MEMS reflecting mirror；30. support base；40. etalon；50.TO pipe cap；60.
Double-fiber collimator；70. thermistor；80. photodetector；90. fixing piece.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention will be further described.
Tunable optic filter of the invention uses TO encapsulating structure, has the advantages that small in size, at low cost, and optical path
It is short, Polarization Dependent Loss is low, Insertion Loss consistency is good；Meanwhile the thermal tuning F-P cavity of the encapsulating structure has lower hot crosstalk,
Environmental stability is good, high reliablity, can cover broad tuning range required by Transmission system, and tuned speed is fast, repeats
Property is good.The adjustable light wave-filter of TO encapsulation, including an input/output terminal and one group of tunable etalon group, further include a TO
Pedestal；The TO pedestal is equipped with a reflecting surface and support base group, and each support base height of support base group is different.Wherein,
Each etalon of tunable etalon group is respectively arranged in each support base；A TO pipe cap is set on TO pedestal, by reflecting surface and can
Tuning etalon group is packaged in pipe cap, and input/output terminal is connect with pipe cap top.After signal light is inputted through input/output terminal,
It is successively incident on reflecting surface after the filtering Jing Guo tunable etalon group, tunable mark is again passed by after reflective surface
The filtering of quasi- tool group, most exports through input/output terminal afterwards.
Specifically, as in the embodiment disclosed in figs. 1-3 one, the thermal tuning constituted with etalon 40 made of two thermo-sensitive materials
For etalon group, the thermal tuning etalon group with 2 silicon etalons be it is preferred, be respectively arranged in two support bases 30.It is (excellent
Silicon etalon is selected, since it is with biggish thermo-optical coeffecient, wider wavelength can be realized in lesser temperature tuning range
Tuning range, it is easy to accomplish and the thermal tuning filtering in control wider range.) as by the biggish thermal expansion coefficient of silicon etalon
The non-uniform problem of bring heat, the encapsulating structure pass through the design of support base 30, can reduce or avoid the problem.Two
The height of support group seat 30 is different, and difference in height is at least greater than or equal to 0.3mm, it is contemplated that package dimension size is excellent with 0.8mm
Choosing, so that the degree of being thermally isolated with higher of two etalons 40 being respectively arranged in the two support bases 30, that is, reduce two
Hot crosstalk between a etalon 40, to facilitate the temperature of two etalons 40 of independent control.
It is coated with adding thermal resistance film on above-mentioned two etalon 40, and is electrically connected respectively with the PIN pin of TO pedestal 10, (such as
It is connected with PIN pin corresponding on TO pedestal 10 by the way that gold electrode is arranged thereon, and by way of beating gold thread)；The bottom TO
The PIN pin of seat 10 is electrically connected with a heating controller, and the temperature of two etalons 40 of heating is controlled by heating controller, real
Existing thermal tuning etalon.The MEMS mirror piece is also to be managed by way of beating gold thread with PIN corresponding on TO pedestal 10
Foot conducting.
Each support base 30 is made of low thermal conductivity material, can be such as made of the glass of lower thermal conductivity；One branch
Support group seat 30 is made of at least two pillars, and by this, at least two pillars support an etalon 40.The encapsulating structure can lead to
It crosses and designs suitable strut height and cross-sectional area, control or minimize the contact area of etalon 40 and support base 30,
So that the etalon 40 in the filter obtains good temperature uniformity, it is uneven because temperature controls to avoid etalon
It is even, cause its chamber long and optical path difference difference everywhere in light pass surface, finally causes the peak wavelength of etalon light pass surface everywhere not
Unanimously, peak I L becomes larger, pulse width, waveform bottom become the problems such as wider.
In the embodiment, input/output terminal is defeated due to double-fiber collimator 60 using a double-fiber collimator 60
Entering has certain angle between optical fiber and output optical fibre, so the light pass surface of tunable etalon group and reflecting surface 20 in the structure
Between have angle placement, avoid it is parallel caused by be superimposed etalon effect, the input of the angle and double-fiber collimator 60
The matching of output optical fibre angle, is best with 5 ° or so between 2 ° ~ 6 °.TO pipe cap 50 is first used when assembly, by MEMS mirror 20
It is packaged in pipe cap with tunable etalon group, and itself and double-fiber collimator 60 is respectively placed on the fixture of adjustment frame, into
Row adjusts light, so that insertion loss is minimum, later by a fixing piece 90, such as glass connector or metal connecting piece, leads to
It crosses the mode being bonded or welded to be fixedly connected with double-fiber collimator 60 with TO pipe cap 50, what the complete TO of composition one was encapsulated can
Tuned filter.Signal light is after the input optical fibre input of double-fiber collimator 60, successively by tunable etalon group
It is incident on MEMS mirror 20 after filtering, the filter of tunable etalon group is again passed by after the reflection of MEMS mirror 20
Wave, most the output optical fibre output through double-fiber collimator 60 afterwards.
Wherein, input/output terminal can also substitute double-fiber collimator using an optical circulator, using optical circulator conduct
When input/output terminal, reflecting surface and the filtering level of tunable etalon group can be parallel to each other.Its assembling process and double optical fiber
The assembling process of collimator is similar.
Embodiment two as shown in Figure 4 has increased separately thermistor 70 on each etalon 40, for detecting each mark
The temperature of quasi- tool 40, each thermistor 70 are electrically connected with the PIN pin of TO pedestal 10.When the filtering device and a control circuit board
After connection is powered, the adding thermal resistance film on etalon 40 carries out independent heated for controlling temperature, temperature-sensitive electricity to each etalon 40 as needed
Resistance 70 can then detect the actual temperature of each etalon 40, and feed back to control circuit board, and the two forms a feedback loop,
It realizes the accurate temperature controlling to etalon 40, after stablizing to temperature, the repeatability of centre of homology wavelength can be tested, reach more smart
The purpose of true filter tuning.
Adjustable light wave-filter of the invention has function more due to the structure using TO encapsulation, small in size, at low cost
Advantage, and optical path is short, Polarization Dependent Loss is low, Insertion Loss consistency is good.Meet very much CFP2 or CFP4 to the tight of filter volume
Lattice require, the filtering of ASE noise the superpower laser after amplifying through EDFA.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, in the form and details to this hair
The bright various change made, is protection scope of the present invention.
Claims (9)
1. a kind of adjustable light wave-filter of TO encapsulation, which is characterized in that including input, output end, one includes PIN pin
TO pedestal, one group of tunable etalon group made of thermo-sensitive material, the TO pedestal is equipped with adjustable angle
MEMS mirror piece and support base group, each support base height of the support base group is different, the etalon group it is each
Etalon is respectively arranged in each support base, and adding thermal resistance film is coated on the etalon, and respectively and on the TO pedestal
The electrical connection of PIN pin, the PIN pin are electrically connected with a heating controller, by described in heating controller control heating
The temperature of etalon is additionally provided with a TO pipe cap to realize thermal tuning etalon on the TO pedestal, by the reflecting optics
It is packaged in pipe cap with the etalon group, the input terminal and output end are connect with the pipe cap top.
2. the adjustable light wave-filter of TO encapsulation as described in claim 1, which is characterized in that the etalon is equipped with for examining
The thermistor of the etalon temperature is surveyed, the thermistor passes through the PIN pin and control circuit board on the TO pedestal
Connection, after energization, the adding thermal resistance film on the etalon carries out independent heated for controlling temperature, the heat to each etalon as needed
Quick resistance can detect the actual temperature of each etalon, and feed back to the control circuit board, and the two forms one and feeds back to
Road, to realize the accurate temperature controlling to etalon.
3. the adjustable light wave-filter of TO encapsulation as described in claim 1, which is characterized in that the support base group includes at least
Two support bases, the difference in height of two support bases are greater than or equal to 0.3mm, and the tunable etalon group includes at least two
Etalon.
4. the adjustable light wave-filter of TO encapsulation as described in claim 1, which is characterized in that the input/output terminal is a pair of light
Fine collimator.
5. the adjustable light wave-filter of TO encapsulation as described in claim 1, which is characterized in that the input/output terminal is a ring of light
Row device.
6. the adjustable light wave-filter of TO as claimed in claim 4 encapsulation, which is characterized in that the light pass surface of the etalon group with
Have angle between reflecting surface, which matches with the input-output optical fiber angle of the double-fiber collimator, 2 ° ~ 6 ° it
Between.
7. the adjustable light wave-filter that the TO as described in claim 1-6 is any is encapsulated, which is characterized in that each support base is adopted
It is made of low thermal conductivity material.
8. the adjustable light wave-filter that the TO as described in claim 1-6 is any is encapsulated, which is characterized in that the material of the etalon
For silicon.
9. the adjustable light wave-filter that the TO as described in claim 1-6 is any is encapsulated, which is characterized in that the etalon is by beating
The mode of gold thread is connected with the PIN pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448783.8A CN110471198A (en) | 2018-05-11 | 2018-05-11 | A kind of adjustable light wave-filter of TO encapsulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810448783.8A CN110471198A (en) | 2018-05-11 | 2018-05-11 | A kind of adjustable light wave-filter of TO encapsulation |
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| Publication Number | Publication Date |
|---|---|
| CN110471198A true CN110471198A (en) | 2019-11-19 |
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ID=68504253
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810448783.8A Pending CN110471198A (en) | 2018-05-11 | 2018-05-11 | A kind of adjustable light wave-filter of TO encapsulation |
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|---|---|---|---|---|
| US20040151216A1 (en) * | 2003-01-27 | 2004-08-05 | Tsai John C. | Tunable wavelength locker, tunable wavelength spectrum monitor, and relative wavelength measurement system |
| CN103257404A (en) * | 2013-06-04 | 2013-08-21 | 贵阳恒浩光电科技有限公司 | MEMS Fabry-Perot cavity tunable filter |
| CN204229009U (en) * | 2014-12-12 | 2015-03-25 | 福州高意通讯有限公司 | A kind of optical filter of TO encapsulation |
| CN105739029A (en) * | 2014-12-12 | 2016-07-06 | 福州高意通讯有限公司 | Tunable optical filter of TO package |
| CN106451057A (en) * | 2016-11-30 | 2017-02-22 | 武汉光迅科技股份有限公司 | Low cost tunable laser with TO structure |
| CN208110190U (en) * | 2018-05-11 | 2018-11-16 | 福州高意通讯有限公司 | A kind of adjustable light wave-filter of TO encapsulation |
-
2018
- 2018-05-11 CN CN201810448783.8A patent/CN110471198A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040151216A1 (en) * | 2003-01-27 | 2004-08-05 | Tsai John C. | Tunable wavelength locker, tunable wavelength spectrum monitor, and relative wavelength measurement system |
| CN103257404A (en) * | 2013-06-04 | 2013-08-21 | 贵阳恒浩光电科技有限公司 | MEMS Fabry-Perot cavity tunable filter |
| CN204229009U (en) * | 2014-12-12 | 2015-03-25 | 福州高意通讯有限公司 | A kind of optical filter of TO encapsulation |
| CN105739029A (en) * | 2014-12-12 | 2016-07-06 | 福州高意通讯有限公司 | Tunable optical filter of TO package |
| CN106451057A (en) * | 2016-11-30 | 2017-02-22 | 武汉光迅科技股份有限公司 | Low cost tunable laser with TO structure |
| CN208110190U (en) * | 2018-05-11 | 2018-11-16 | 福州高意通讯有限公司 | A kind of adjustable light wave-filter of TO encapsulation |
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