CN105403955B - The optical filter of tunable wave length - Google Patents
The optical filter of tunable wave length Download PDFInfo
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- CN105403955B CN105403955B CN201510769972.1A CN201510769972A CN105403955B CN 105403955 B CN105403955 B CN 105403955B CN 201510769972 A CN201510769972 A CN 201510769972A CN 105403955 B CN105403955 B CN 105403955B
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- fiber
- fiber coupler
- light input
- light
- output port
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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
A kind of optical filter of tunable wave length, including Polarization Controller, three fiber couplers, two fiber optic loops, heating plate and direct voltage source；The light output end of Polarization Controller is connect 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 and the second light input/output port of the second fiber coupler are connected by the first fiber optic loop, the third light input/output port of second fiber coupler and the first light input/output port of third fiber coupler, 4th light input/output port of the second fiber coupler is connected by the second fiber optic loop with the second light input/output port of third fiber coupler, the light output end of third fiber coupler is light signal output end, heating plate is tightly attached in the second fiber optic loop, heating plate is connect with direct voltage source electric signal.Tuning manner of the present invention is simple, and tuning range improves decades of times.
Description
Technical field
The present invention relates to optoelectronic areas, and in particular to a kind of optical filter of tunable wave length.
Background technology
Optical filter is the instrument for carrying out wavelength selection to optical signal, can be selected from all multi-wavelengths of optical signal
Required wavelength is selected out, and the light of its commplementary wave length can not be by optical filter, optical filter can be used for wavelength selection, light
Noise filtering, gain balance, light multiplexing and Optical Demultiplexing of amplifier etc..In practical applications required for different working environments
Optical wavelength it is different, therefore the tunable optical filter of operation wavelength adapts to the demand of more occasions, but current tunable
Optical filter tuning range is small, and tuning manner is complicated, existing the case where for needing a wide range of, frequent changes optical wavelength
Optical filter be difficult to meet its needs.
Invention content
Based on the above shortcoming, the present invention provides a kind of optical filter of tunable wave length, solves existing adjustable
Humorous optical filter tuning range is small, tuning manner is complicated, it is difficult to the problem of meeting a wide range of, frequent changes optical wavelength.
The technology used in the present invention is as follows：
A kind of optical filter of tunable wave length, including Polarization Controller, the first fiber coupler, the first fiber optic loop,
Second fiber coupler, the second fiber optic loop, third fiber coupler, heating plate and direct voltage source；Optical signal input is inclined
Shake the light input end of controller, and the light output end of Polarization Controller is connect with the light input end of the first fiber coupler, the first light
First light input/output port of fine coupler and the first light input/output port of the second fiber coupler, the first fiber coupler
Second light input/output port of the second light input/output port and the second fiber coupler is connected by the first fiber optic loop, the second light
The third light input/output port of fine coupler and the first light input/output port of third fiber coupler, the second fiber coupler
4th light input/output port is connected by the second fiber optic loop with the second light input/output port of third fiber coupler, third light
The light output end of fine coupler is light signal output end, and heating plate is tightly attached in the second fiber optic loop, the electric signal input of heating plate
The electrical signal of end connection direct voltage source.
The present invention also has following technical characteristic：
1, first fiber optic loop and the second fiber optic loop are the air core coil of the single mode optical fiber coiling of different length.
2, first fiber optic loop and the second fiber optic loop are the air core coil of the single mode optical fiber coiling of different length；First
Fiber coupler coupling ratio is 99: 1, and the second fiber coupler coupling ratio is 80: 20, and third fiber coupler coupling ratio is 99:
1；
3, the DC voltage magnitude of direct voltage source output can be adjusted, to realize that the optical filter tunes
Wavelength.
The features and advantages of the invention：
The present invention overcomes existing tunable optical filter tuning range is small, tuning manner is complicated, it is difficult to meet big model
Enclose, frequent changes optical wavelength situation demand the problems such as, tuning manner of the present invention is simple, tuning range improve decades of times.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
It is described further below according to Figure of description citing：
Embodiment 1
As shown in Fig. 1, a kind of optical filter of tunable wave length, including 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, third 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 and the first fiber coupler 2
Light input end connection, the first light input of the first light input/output port of the first fiber coupler 2 and the second fiber coupler 4
Second light input/output port of output end, the second light input/output port of the first fiber coupler 2 and the second fiber coupler 4 is equal
It is connected by the first fiber optic loop 3, the third light input/output port of the second fiber coupler 4 and the first of third fiber coupler 6
The second light input of light input/output port, the 4th light input/output port of the second fiber coupler 4 and third fiber coupler 6 is defeated
Outlet is connected by the second fiber optic loop 5, and the light output end of third fiber coupler 6 is light signal output end, and heating plate 7 is close to
In the second fiber optic loop 5, the electrical signal of the electric signal input end connection direct voltage source 8 of heating plate 7.Described first
Fiber optic loop 3 and the second fiber optic loop 5 are the air core coil of the single mode optical fiber coiling of different length；First fiber coupler, 2 coupling ratio
It is 99: 1,4 coupling ratio of the second fiber coupler is 80: 20, and 6 coupling ratio of third fiber coupler is 99: 1；Direct voltage source 8 is defeated
The DC voltage magnitude gone out is adjustable, this implementation is realized by adjusting the DC voltage magnitude that the tuning direct voltage source 8 exports
The tuning of example optical filter wavelength.
Embodiment 2
The operation principle of the present invention is that：The optical signals optical signal input input polarization controller 1 being filtered is needed,
After selecting polarization state, enter the first fiber optic loop 3 by the first fiber coupler 2, then passes through the second fiber coupler 4 and enter the
Two fiber optic loops 5 finally pass through third fiber coupler 6, are exported by the output end of third fiber coupler 6, optical signal is transmitting
In the process, occur in the fiber resonance cavity being made of the first fiber coupler 2, the first fiber optic loop 3, the second fiber coupler 4
Resonance forms some and arranges equidistant first resonance wavelengths, while also by the second fiber coupler 4, the second fiber optic loop 5, the
Resonance occurs in the fiber resonance cavity that three fiber couplers 6 are constituted, forms some and arranges equidistant second resonance wavelengths, wavelength with
The first resonance wavelength light equal with the second resonance wavelength can be exported by light signal output end, and the light of other wavelength can not be by light
Signal output end exports, and by tuning the amplitude for the DC voltage that direct voltage source 8 exports, controls the temperature of heating plate 7, makes the
Two fiber optic loops, 5 length is with the directly proportional variation of temperature, the second resonance wavelength also respective change, to tune light signal output end output
The light of different wave length.
Claims (1)
1. a kind of optical filter of tunable wave length, including Polarization Controller (1), the first fiber coupler (2), the first optical fiber
Ring (3), the second fiber coupler (4), the second fiber optic loop (5), third 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)
It is connect with the light input end of the first fiber coupler (2), the first light input/output port and the second light of the first fiber coupler (2)
First light input/output port of fine coupler (4), the second light input/output port of the first fiber coupler (2) and the second optical fiber coupling
Second light input/output port of clutch (4) is connected by the first fiber optic loop (3), and the third light of the second fiber coupler (4) is defeated
The 4th light input for entering the first light input/output port, the second fiber coupler (4) of output end and third fiber coupler (6) is defeated
Second light input/output port of outlet and third fiber coupler (6) is connected by the second fiber optic loop (5), third fiber coupling
The light output end of device (6) is light signal output end, and heating plate (7) is tightly attached in the second fiber optic loop (5), the telecommunications of heating plate (7)
The electrical signal of number input terminal connection direct voltage source (8)；First fiber optic loop (3) and the second fiber optic loop (5) are not
With the air core coil of the single mode optical fiber coiling of length；First fiber coupler (2) coupling ratio is 99: 1, second optical fiber
Coupler (4) coupling ratio is 80: 20, and third fiber coupler (6) coupling ratio is 99: 1；The direct voltage source (8) is defeated
The DC voltage magnitude gone out can be adjusted；To realize the optical filter tuning wavelength.
Priority Applications (1)
| 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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| 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 CN105403955A (en) | 2016-03-16 |
| CN105403955B true CN105403955B (en) | 2018-08-03 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10310298B2 (en) * | 2016-10-25 | 2019-06-04 | GM Global Technology Operations LLC | Smart sensor-cover apparatus and methods and computer products for implementing same |
| 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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| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9164236B2 (en) * | 2011-05-02 | 2015-10-20 | California Institute Of Technology | Methods and systems for delaying optical waves |
-
2015
- 2015-11-09 CN CN201510769972.1A patent/CN105403955B/en active Active
Patent Citations (9)
| 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 |
| 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 |
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| CN105403955A (en) | 2016-03-16 |
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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 |
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