CN105403955A - Optical filter with tunable wavelengths - Google Patents
Optical filter with tunable wavelengths Download PDFInfo
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- CN105403955A CN105403955A CN201510769972.1A CN201510769972A CN105403955A CN 105403955 A CN105403955 A CN 105403955A CN 201510769972 A CN201510769972 A CN 201510769972A CN 105403955 A CN105403955 A CN 105403955A
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- fiber coupler
- light input
- optical fiber
- fiber
- light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
An optical filter with tunable wavelengths comprises a polarization controller, three optical fiber couplers, two optical fiber rings, a heating plate and a DC voltage source. A light output terminal of the polarization controller is connected to a light input terminal of the first optical fiber coupler. A first light input-output terminal of the first optical fiber coupler and a first light input-output terminal of the second optical fiber coupler are connected through the first optical fiber ring. A second light input-output terminal of the first optical fiber coupler and a second light input-output terminal of the second optical fiber coupler are connected through the first optical fiber ring. A third light input-output terminal of the second optical fiber coupler and a first light input-output terminal of the third optical fiber coupler are connected through the second optical fiber ring. A fourth light input-output terminal of the second optical fiber coupler and a second light input-output terminal of the third optical fiber coupler are connected through the second optical fiber ring. A light output terminal of the third optical fiber coupler is a light signal output terminal. The heating plate adheres onto the second optical fiber ring and is in electric signal connection with the DC voltage source. According to the invention, the tuning mode is simple, and the tuning range is raised by tens of times.
Description
Technical field
The present invention relates to optoelectronic areas, be specifically related to a kind of optical filter of tunable wave length.
Background technology
Optical filter is used to instrument light signal being carried out to wavelength chooses, required wavelength can be selected from all multi-wavelengths of light signal, and the light of its commplementary wave length cannot pass through optical filter, optical filter may be used for wavelength chooses, the noise filtering of image intensifer, gain balance, recovery with and Optical Demultiplexing etc.Optical wavelength required for working environments different is in actual applications different, therefore the tunable optical filter of operation wavelength can adapt to the demand of many occasions, but current tunable optical filter tuning range is little, and tuning manner is complicated, for needing on a large scale, the situation of frequent changes optical wavelength, existing optical filter is difficult to meet its needs.
Summary of the invention
Based on above weak point, the invention provides a kind of optical filter of tunable wave length, solve that existing tunable optical filter tuning range is little, tuning manner is complicated, be difficult to meet on a large scale, the problem of frequent changes optical wavelength.
The technology used in the present invention is as follows:
An optical filter for tunable wave length, comprises Polarization Controller, the first fiber coupler, the first fiber optic loop, the second fiber coupler, the second fiber optic loop, the 3rd fiber coupler, heating plate and direct voltage source, optical signal input is the light input end of Polarization Controller, the light output end of Polarization Controller is connected with the light input end of the first fiber coupler, first light input/output port of the first fiber coupler and the first light input/output port of the second fiber coupler, second light input/output port of the first fiber coupler is all connected by the first fiber optic loop with the second light input/output port of the second fiber coupler, 3rd light input/output port of the second fiber coupler and the first light input/output port of the 3rd fiber coupler, 4th light input/output port of the second fiber coupler is all connected by the second fiber optic loop with the second light input/output port of the 3rd fiber coupler, the light output end of the 3rd fiber coupler is light signal output end, heating plate is close in the second fiber optic loop, the electric signal input end of heating plate connects the electrical signal of direct voltage source.
The present invention also has following technical characteristic:
1, the first described fiber optic loop and the second fiber optic loop are the air core coil of the single-mode fiber coiling of different length.
2, the first described fiber optic loop and the second fiber optic loop are the air core coil of the single-mode fiber coiling of different length; First fiber coupler coupling ratio is the 99: 1, second fiber coupler coupling ratio be the 80: 20, three fiber coupler coupling ratio is 99: 1;
3, the DC voltage magnitude that described direct voltage source exports can regulate, thus realizes this optical filter tuning wavelength.
The features and advantages of the invention:
Instant invention overcomes existing tunable optical filter tuning range little, tuning manner is complicated, is difficult to meet on a large scale, the problem such as frequent changes optical wavelength situation demand, and tuning manner of the present invention is simple, and tuning range improves decades of times.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Be described further according to Figure of description citing below:
Embodiment 1
As shown in Figure 1, a kind of optical filter of tunable wave length, comprises Polarization Controller 1, first fiber coupler 2, first fiber optic loop 3, second fiber coupler 4, second fiber optic loop 5, the 3rd fiber coupler 6, heating plate 7 and direct voltage source 8, optical signal input is the light input end of Polarization Controller 1, the light output end of Polarization Controller 1 is connected with the light input end of the first fiber coupler 2, first light input/output port of the first fiber coupler 2 and the first light input/output port of the second fiber coupler 4, second light input/output port of the first fiber coupler 2 is all connected by the first fiber optic loop 3 with the second light input/output port of the second fiber coupler 4, 3rd light input/output port of the second fiber coupler 4 and the first light input/output port of the 3rd fiber coupler 6, 4th light input/output port of the second fiber coupler 4 is all connected by the second fiber optic loop 5 with the second light input/output port of the 3rd fiber coupler 6, the light output end of the 3rd fiber coupler 6 is light signal output end, heating plate 7 is close in the second fiber optic loop 5, the electric signal input end of heating plate 7 connects the electrical signal of direct voltage source 8.The first described fiber optic loop 3 and the second fiber optic loop 5 are the air core coil of the single-mode fiber coiling of different length; First fiber coupler 2 coupling ratio is the 99: 1, second fiber coupler 4 coupling ratio be the 80: 20, three fiber coupler 6 coupling ratio is 99: 1; The DC voltage magnitude that direct voltage source 8 exports is adjustable, realizes the tuning of the present embodiment optical filter wavelength by the DC voltage magnitude regulating described tuning direct voltage source 8 to export.
Embodiment 2
Principle of work of the present invention is: need the optical signals optical signal input input polarization controller 1 carrying out filtering, after selecting polarization state, the first fiber optic loop 3 is entered through the first fiber coupler 2, then the second fiber optic loop 5 is entered through the second fiber coupler 4, eventually pass the 3rd fiber coupler 6, exported by the output terminal of the 3rd fiber coupler 6, light signal is in transmitting procedure, by the first fiber coupler 2, first fiber optic loop 3, resonance is there is in the fiber resonance cavity that second fiber coupler 4 is formed, form equally spaced first resonance wavelength of some row, simultaneously also by the second fiber coupler 4, second fiber optic loop 5, resonance is there is in the fiber resonance cavity that 3rd fiber coupler 6 is formed, form equally spaced second resonance wavelength of some row, the light that wavelength is equal with the second resonance wavelength with the first resonance wavelength can be exported by light signal output end, the light of other wavelength cannot be exported by light signal output end, the amplitude of the DC voltage exported by tuning direct voltage source 8, control the temperature of heating plate 7, second fiber optic loop 5 length to be directly proportional change with temperature, second resonance wavelength also respective change, thus tuned light signal output part exports the light of different wave length.
Claims (4)
1. the optical filter of a tunable wave length, comprise Polarization Controller (1), the first fiber coupler (2), the first fiber optic loop (3), the second fiber coupler (4), the second fiber optic loop (5), the 3rd fiber coupler (6), heating plate (7) and direct voltage source (8), optical signal input is the light input end of Polarization Controller (1); it is characterized in that: the light output end of Polarization Controller (1) is connected with the light input end of the first fiber coupler (2), first light input/output port of the first fiber coupler (2) and the first light input/output port of the second fiber coupler (4), second light input/output port of the first fiber coupler (2) is all connected by the first fiber optic loop (3) with the second light input/output port of the second fiber coupler (4), 3rd light input/output port of the second fiber coupler (4) and the first light input/output port of the 3rd fiber coupler (6), 4th light input/output port of the second fiber coupler (4) is all connected by the second fiber optic loop (5) with the second light input/output port of the 3rd fiber coupler (6), the light output end of the 3rd fiber coupler (6) is light signal output end, heating plate (7) is close in the second fiber optic loop (5), the electric signal input end of heating plate (7) connects the electrical signal of direct voltage source (8).
2. the optical filter of a kind of tunable wave length according to claim 1, is characterized in that: the air core coil of the single-mode fiber coiling that described first fiber optic loop (3) and the second fiber optic loop (5) are different length.
3. the optical filter of a kind of tunable wave length according to claim 1, it is characterized in that: described first fiber coupler (2) coupling ratio is 99: 1, described second fiber coupler (4) coupling ratio is 80: 20, and described 3rd fiber coupler (6) coupling ratio is 99: 1.
4. the optical filter of a kind of tunable wave length according to claim 1, is characterized in that: the DC voltage magnitude that described direct voltage source (8) exports can regulate; Thus realize this optical filter tuning wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510769972.1A CN105403955B (en) | 2015-11-09 | 2015-11-09 | The optical filter of tunable wave length |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510769972.1A CN105403955B (en) | 2015-11-09 | 2015-11-09 | The optical filter of tunable wave length |
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| CN105403955A true CN105403955A (en) | 2016-03-16 |
| CN105403955B CN105403955B (en) | 2018-08-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443927A (en) * | 2016-11-29 | 2017-02-22 | 北京天海蓝业科技有限公司 | Optical fiber filtering device |
| CN107972603A (en) * | 2016-10-25 | 2018-05-01 | 通用汽车环球科技运作有限责任公司 | Intelligence sensor lid arrangement and method and the computer product for implementing this method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903691A (en) * | 1996-06-24 | 1999-05-11 | Trw Inc. | Optical-loop signal processing using reflection mechanisms |
| US6195187B1 (en) * | 1998-07-07 | 2001-02-27 | The United States Of America As Represented By The Secretary Of The Air Force | Wavelength-division multiplexed M×N×M cross-connect switch using active microring resonators |
| WO2004044624A2 (en) * | 2002-11-08 | 2004-05-27 | California Institute Of Technology | Optical filter having coupled whispering-gallery-mode resonators |
| WO2005064375A1 (en) * | 2003-12-24 | 2005-07-14 | Pirelli & C. S.P.A. | Low loss microring resonator device |
| WO2008129571A1 (en) * | 2007-04-20 | 2008-10-30 | Pgt Photonics S.P.A. | Method and device.for tunable optical filtering using vernier effect |
| CN101840028A (en) * | 2010-04-07 | 2010-09-22 | 中国科学院半导体研究所 | Integrated reconfigurable optical add/drop multiplexer based on microring resonator |
| CN101915962A (en) * | 2010-07-27 | 2010-12-15 | 东南大学 | Multichannel micro-resonant cavity array structure |
| CN102323645A (en) * | 2011-05-11 | 2012-01-18 | 上海大学 | Mach-Zehnder interferometer-type optical trap filter based on dual-loop coupling structures |
| CN102338908A (en) * | 2010-07-22 | 2012-02-01 | 清华大学 | All fiber filter |
| US20140029893A1 (en) * | 2011-05-02 | 2014-01-30 | Hsi-Chun Liu | Methods and systems for delaying optical waves |
-
2015
- 2015-11-09 CN CN201510769972.1A patent/CN105403955B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903691A (en) * | 1996-06-24 | 1999-05-11 | Trw Inc. | Optical-loop signal processing using reflection mechanisms |
| US6195187B1 (en) * | 1998-07-07 | 2001-02-27 | The United States Of America As Represented By The Secretary Of The Air Force | Wavelength-division multiplexed M×N×M cross-connect switch using active microring resonators |
| WO2004044624A2 (en) * | 2002-11-08 | 2004-05-27 | California Institute Of Technology | Optical filter having coupled whispering-gallery-mode resonators |
| WO2005064375A1 (en) * | 2003-12-24 | 2005-07-14 | Pirelli & C. S.P.A. | Low loss microring resonator device |
| WO2008129571A1 (en) * | 2007-04-20 | 2008-10-30 | Pgt Photonics S.P.A. | Method and device.for tunable optical filtering using vernier effect |
| CN101840028A (en) * | 2010-04-07 | 2010-09-22 | 中国科学院半导体研究所 | Integrated reconfigurable optical add/drop multiplexer based on microring resonator |
| CN102338908A (en) * | 2010-07-22 | 2012-02-01 | 清华大学 | All fiber filter |
| CN101915962A (en) * | 2010-07-27 | 2010-12-15 | 东南大学 | Multichannel micro-resonant cavity array structure |
| US20140029893A1 (en) * | 2011-05-02 | 2014-01-30 | Hsi-Chun Liu | Methods and systems for delaying optical waves |
| CN102323645A (en) * | 2011-05-11 | 2012-01-18 | 上海大学 | Mach-Zehnder interferometer-type optical trap filter based on dual-loop coupling structures |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972603A (en) * | 2016-10-25 | 2018-05-01 | 通用汽车环球科技运作有限责任公司 | Intelligence sensor lid arrangement and method and the computer product for implementing this method |
| CN106443927A (en) * | 2016-11-29 | 2017-02-22 | 北京天海蓝业科技有限公司 | Optical fiber filtering device |
| CN106443927B (en) * | 2016-11-29 | 2019-07-16 | 北京天海蓝业科技有限公司 | A kind of optical fiber filter |
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| CN105403955B (en) | 2018-08-03 |
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Effective date of registration: 20201120 Address after: 223400 industrial concentration zone, Chenshi street, Lianshui County, Huai'an City, Jiangsu Province Patentee after: Huai'an Juying Precision Machinery Co.,Ltd. Address before: Room 1005, No.117, Longyi Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: Guangzhou world standard Mdt InfoTech Ltd. Effective date of registration: 20201120 Address after: Room 1005, No.117, Longyi Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Guangzhou world standard Mdt InfoTech Ltd. Address before: 150040 No. 26 Hexing Road, Xiangfang District, Heilongjiang, Harbin Patentee before: NORTHEAST FORESTRY University |