CN1908577A - Michelson's interferometer integrated into single optical fiber - Google Patents
Michelson's interferometer integrated into single optical fiber Download PDFInfo
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- CN1908577A CN1908577A CN 200610010422 CN200610010422A CN1908577A CN 1908577 A CN1908577 A CN 1908577A CN 200610010422 CN200610010422 CN 200610010422 CN 200610010422 A CN200610010422 A CN 200610010422A CN 1908577 A CN1908577 A CN 1908577A
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Abstract
The related Michelson interferometer with only one optical fiber comprises: integrating the co-light-path part of source input and signal output and two interference arms into one optical fiber; and using the integrated optical fiber with one segment as mono-core fiber and one segment as dual-core fiber to replace the conventional product. The advantages of this invention include: 1. well stability; 2. small size and compact structure; 3. low requirement to source coherence; and 4. automatic compensation for light path difference.
Description
Technical field
A kind of Michelson interferometer that is integrated into simple optical fiber belongs to the photoelectron technology field.
Background technology
Common optical fiber Michelson interferometer is independent separately by two and fiber optic interferometric arm that separate constitutes.For example, the application for a patent for invention of Zhou Xiaojun, Liu Yongzhi " optical fibre Michelson interferometer of band optical circulator " (publication number: CN 1444019A).In this interferometer, the light that light source sends through 3dB 2 * 2 fiber couplers after, be divided into two bundles, be coupled to two respectively independently in the fiber arm, again through after the reflection of two fiber end face reverberators, turn back to along former road and to realize in 2 * 2 fiber couplers interfering, this interference light signal is exaggerated after by the opto-electronic conversion detector, thereby realizes the detection of interference light signal.
The above-mentioned interference instrument is widely used in optical fiber communication and the sensory field of optic fibre.Yet under the situation that interferometer is had higher mechanical stability and temperature stability require, the optical fiber Michelson interferometer of being made up of the discrete optical texture is difficult to satisfy such demand.
Summary of the invention
The objective of the invention is to disclose a kind of two coherent optics arms and be integrated in fiber micro integrated-type Michelson interferometer in the simple optical fiber common optical fiber Michelson interferometer.
The Michelson interferometer that is integrated into simple optical fiber comprises light source 1, miniature spectroscope 2, photo-detector 3, single mode single-core fiber 4, taper coupled zone 5, single-mode dual-core optical fiber 6 and catoptron 7.Its major technique is characterised in that the light source input of this fibre optic interferometer and light signal output is total to light path part and two interference arms all are integrated in the optical fiber.
The present invention is achieved in that the light that light source 1 sends injects single mode single-core fibers 4 through miniature spectroscope 2 backs, and this light beam is divided into two bundles after through taper coupled zone 5, is coupled to two of single-mode dual-core optical fiber 6 respectively separately independently in the fibre core.This two-beam reflects through catoptron 7, after interfering through taper coupled zone 5 once more, turn back in the common light path part that constitutes by single mode single-core fiber 4, become a branch of light that comprises interference signal, this light beam is reflected onto photo-detector 3 after via miniature spectroscope 2, carries out the photosignal conversion at photo-detector 3 places.
The invention has the advantages that: 1. the interferometer that is integrated into an optical fiber has great stability, has avoided between each movable member because assembling, fixing and adjust the variation that brings and inconsistent; 2. because beam split, splicer micro are integrated in the optical fiber, dwindled the volume of interferometer greatly, compactness is more simplified by the system that makes; 3. interfere the optical path difference of arms very little owing to two that are in the twin-core fiber, thus less demanding to the coherence of light source; 4. interfere arm owing to be in the same optical fiber for two, the influence that environment temperature causes is approximate identical, thereby can realize the automatic compensation of two arm light paths.
Description of drawings
Fig. 1 is integrated into the Michelson interferometer of simple optical fiber and implements structural representation
Fig. 2 is integrated into second kind of embodiment structural representation of the Michelson interferometer of simple optical fiber
Fig. 3 is integrated into the third embodiment structural representation of the Michelson interferometer of simple optical fiber
Embodiment
Provide three kinds of embodiments of the present invention below in conjunction with accompanying drawing.
Fig. 1 illustrates first kind of embodiment of the present invention.The Michelson interferometer that is integrated into simple optical fiber comprises light source 1, miniature spectroscope 2, photo-detector 3, single mode single-core fiber 4, taper coupled zone 5, single-mode dual-core optical fiber 6 and catoptron 7.Usually, light source 1, miniature spectroscope 2 and photo-detector 3 are combined into the light transmission duplex device of a magnetic tape trailer fibre.
As shown in Figure 2, second kind of embodiment of the present invention is to replace single-mode dual-core optical fiber 6 with two identical fiber gratings 8 and 9 of reflectance spectrum.Among Fig. 2 except the identical fiber grating 8,9 of two reflectance spectrums with shown in Figure 1 different, all the other are all same as shown in Figure 1.
Replace as the fiber grating 8 that a pair of reflectance spectrum of catoptron 7 usefulness is identical and 9, can realize that too two coherent optics arms are integrated in the fiber micro integrated-type Michelson interferometer in the simple optical fiber.
As shown in Figure 3, the third embodiment of the present invention also comprises light source tail optical fiber 10, detector tail optical fiber 11 and 3dB 2 * 1 fiber couplers 12.In this embodiment, interferometer primary structure feature is identical with preceding two kinds of embodiments, and just the light transmission duplex device with single mode single-core fiber 4 is replaced by discrete light source 1 and photo-detector 3.
In this embodiment, its principal character is that the duplexing assembly of the band single mode single-core fiber 4 that will be made up of light source 1, miniature spectroscope 2, photo-detector 3 among Fig. 1 is realized by light source tail optical fiber 10 and photo-detector tail optical fiber 11 and 2 * 1 being connected of fiber coupler 12 an of 3dB with photo-detector 3 with a discrete light source 1.The integrated level of the Michelson interferometer of Shi Xianing is more less better than the integrated level of two kinds of situations illustrated in figures 1 and 2 like this.
The present invention has avoided between each movable member because assembling, fixing and adjust the variation that brings and inconsistent; Dwindled the volume of interferometer, compactness is more simplified by the system that makes; Coherence to light source is less demanding; Can realize the automatic compensation of two arm light paths.
Claims (3)
1. Michelson interferometer that is integrated into simple optical fiber, it comprises light source (1), miniature spectroscope (2), photo-detector (3), single mode single-core fiber (4) catoptron (7); It is characterized in that: it also comprises taper coupled zone (5), single-mode dual-core optical fiber (6); Single mode single-core fiber (4) and have two of reflection end and interfere arms all to be integrated in the single-mode dual-core optical fiber (6) wherein; Single mode single-core fiber (4) is connected by taper coupled zone (5) with single-mode dual-core optical fiber (6).
2. the Michelson interferometer that is integrated into simple optical fiber as claimed in claim 1 is characterized in that: the reflection end face of single-mode dual-core optical fiber (6) also can be made of two fiber grating (8), (9) with identical reflectance spectrum.
3. the Michelson interferometer that is integrated into simple optical fiber as claimed in claim 1, it is characterized in that: light source (1) and photo-detector (3) can adopt discrete light source (1) and photo-detector (3), by realizing light source tail optical fiber (10) and photo-detector tail optical fiber (11) and being connected of coupling mechanism (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100104222A CN100406841C (en) | 2006-08-22 | 2006-08-22 | Michelson's interferometer integrated into single optical fiber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100104222A CN100406841C (en) | 2006-08-22 | 2006-08-22 | Michelson's interferometer integrated into single optical fiber |
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| CN1908577A true CN1908577A (en) | 2007-02-07 |
| CN100406841C CN100406841C (en) | 2008-07-30 |
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| CN2006100104222A Expired - Fee Related CN100406841C (en) | 2006-08-22 | 2006-08-22 | Michelson's interferometer integrated into single optical fiber |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324445B (en) * | 2008-07-30 | 2010-06-02 | 哈尔滨工程大学 | Distributed optical fiber white light interference sensor array based on adjustable Fabry-Perot resonant cavity |
| CN101614601B (en) * | 2009-08-10 | 2010-09-08 | 重庆大学 | Internal fiber integration type miniature Michelson interferometric sensor and manufacturing method thereof |
| CN101846491A (en) * | 2010-05-31 | 2010-09-29 | 哈尔滨工程大学 | Interferometer combined by double F-P chambers and Michelson |
| CN101957477A (en) * | 2010-05-31 | 2011-01-26 | 哈尔滨工程大学 | Polarization-preserving type fiber integrated Michelson interferometer |
| CN101876529B (en) * | 2009-04-30 | 2012-04-04 | 昂纳信息技术（深圳）有限公司 | Interferometer for environment temperature compensation and compensating method thereof |
| EP2722659A1 (en) * | 2009-04-27 | 2014-04-23 | Picometrix, LLC | System and method reducing fiber stretch induced timing errors in fiber optic coupled time domain terahertz systems |
| CN104180831A (en) * | 2013-05-24 | 2014-12-03 | 无锡万润光子技术有限公司 | Sensitivity-enhanced optical time domain reflection distributed Michelson interferometer based on two-core optical fiber |
| CN104503079A (en) * | 2014-12-15 | 2015-04-08 | 哈尔滨工程大学 | Michelson interferometer type optical path correlator integrating double optical paths in same optical fiber |
| CN109374109A (en) * | 2018-09-01 | 2019-02-22 | 哈尔滨工程大学 | A kind of mini optical fibre extrinsic type Michelson sound pressure sensor of light channel structure altogether |
| CN109557741A (en) * | 2018-12-12 | 2019-04-02 | 桂林电子科技大学 | Fiber based on miniature piezoelectric transducer array integrates Michelson intensity modulator |
| CN110325816A (en) * | 2016-12-06 | 2019-10-11 | 信息技术有限公司 | Waveguide interferometers |
| CN110824728A (en) * | 2019-11-26 | 2020-02-21 | 哈尔滨工程大学 | Double solid core optical fiber photo-thermal phase modulator coated with thermosensitive material |
| CN110954239A (en) * | 2019-10-29 | 2020-04-03 | 桂林电子科技大学 | Temperature sensor based on double-core single-hole optical fiber |
| CN110953995A (en) * | 2019-12-30 | 2020-04-03 | 北京交通大学 | Three-dimensional space coordinate positioning device based on multi-core optical fiber |
| CN111121838A (en) * | 2019-12-28 | 2020-05-08 | 桂林电子科技大学 | Double-core optical fiber Michelson interferometer for inclined grating beam splitting |
| CN111141317A (en) * | 2019-12-28 | 2020-05-12 | 桂林电子科技大学 | Parallel Michelson integrated interferometer based on three-core optical fiber |
| CN111609819A (en) * | 2020-04-10 | 2020-09-01 | 桂林电子科技大学 | Super-smooth surface roughness measuring system |
| CN112764164A (en) * | 2021-01-28 | 2021-05-07 | 南开大学 | Optical fiber device, manufacturing method and optical fiber internal acoustic Mach-Zehnder interferometer |
| CN113589438A (en) * | 2021-07-29 | 2021-11-02 | 西南交通大学 | Linear polarization Sagnac total reflection mirror based on double-core optical fiber, method and optical system |
| CN113608295A (en) * | 2021-08-04 | 2021-11-05 | 西南交通大学 | Fiber-integrated adjustable optical comb filter, method and optical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2613065B1 (en) * | 1987-03-24 | 1991-07-26 | Electricite De France | MICHELSON FIBER OPTIC INTERFEROMETER AND ITS APPLICATION IN PARTICULAR TO MEASURING TEMPERATURES |
| US6603559B2 (en) * | 2001-10-11 | 2003-08-05 | Yuan Ze University | Silicon-on-insulator optical waveguide Michelson interferometer sensor for temperature monitoring |
| CN2594808Y (en) * | 2003-01-14 | 2003-12-24 | 天津大学 | Mixed integrated optical acceleration seismic detector |
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2006
- 2006-08-22 CN CN2006100104222A patent/CN100406841C/en not_active Expired - Fee Related
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324445B (en) * | 2008-07-30 | 2010-06-02 | 哈尔滨工程大学 | Distributed optical fiber white light interference sensor array based on adjustable Fabry-Perot resonant cavity |
| JP2014224821A (en) * | 2009-04-27 | 2014-12-04 | ピコメトリクス、エルエルシー | System and method reducing fiber stretch induced timing errors in time domain terahertz systems optically coupled by fiber |
| EP2722659A1 (en) * | 2009-04-27 | 2014-04-23 | Picometrix, LLC | System and method reducing fiber stretch induced timing errors in fiber optic coupled time domain terahertz systems |
| CN104158073A (en) * | 2009-04-27 | 2014-11-19 | 派克米瑞斯有限责任公司 | System and method reducing fiber stretch induced timing errors in fiber optic coupled time domain terahertz systems |
| KR101626265B1 (en) * | 2009-04-27 | 2016-05-31 | 피코메트릭스 엘엘씨 | System and method reducing fiber stretch induced timing errors in fiber optic coupled time domain terahertz systems |
| CN101876529B (en) * | 2009-04-30 | 2012-04-04 | 昂纳信息技术（深圳）有限公司 | Interferometer for environment temperature compensation and compensating method thereof |
| CN101614601B (en) * | 2009-08-10 | 2010-09-08 | 重庆大学 | Internal fiber integration type miniature Michelson interferometric sensor and manufacturing method thereof |
| CN101846491A (en) * | 2010-05-31 | 2010-09-29 | 哈尔滨工程大学 | Interferometer combined by double F-P chambers and Michelson |
| CN101957477A (en) * | 2010-05-31 | 2011-01-26 | 哈尔滨工程大学 | Polarization-preserving type fiber integrated Michelson interferometer |
| CN101957477B (en) * | 2010-05-31 | 2012-10-31 | 哈尔滨工程大学 | Polarization-preserving type fiber integrated Michelson interferometer |
| CN104180831A (en) * | 2013-05-24 | 2014-12-03 | 无锡万润光子技术有限公司 | Sensitivity-enhanced optical time domain reflection distributed Michelson interferometer based on two-core optical fiber |
| CN104503079A (en) * | 2014-12-15 | 2015-04-08 | 哈尔滨工程大学 | Michelson interferometer type optical path correlator integrating double optical paths in same optical fiber |
| CN110325816A (en) * | 2016-12-06 | 2019-10-11 | 信息技术有限公司 | Waveguide interferometers |
| CN109374109A (en) * | 2018-09-01 | 2019-02-22 | 哈尔滨工程大学 | A kind of mini optical fibre extrinsic type Michelson sound pressure sensor of light channel structure altogether |
| CN109374109B (en) * | 2018-09-01 | 2020-09-25 | 哈尔滨工程大学 | Miniature optical fiber extrinsic type Michelson sound pressure sensor with common optical path structure |
| CN109557741A (en) * | 2018-12-12 | 2019-04-02 | 桂林电子科技大学 | Fiber based on miniature piezoelectric transducer array integrates Michelson intensity modulator |
| CN110954239A (en) * | 2019-10-29 | 2020-04-03 | 桂林电子科技大学 | Temperature sensor based on double-core single-hole optical fiber |
| CN110824728A (en) * | 2019-11-26 | 2020-02-21 | 哈尔滨工程大学 | Double solid core optical fiber photo-thermal phase modulator coated with thermosensitive material |
| CN111141317B (en) * | 2019-12-28 | 2022-03-25 | 桂林电子科技大学 | Parallel Michelson integrated interferometer based on three-core optical fiber |
| CN111121838A (en) * | 2019-12-28 | 2020-05-08 | 桂林电子科技大学 | Double-core optical fiber Michelson interferometer for inclined grating beam splitting |
| CN111141317A (en) * | 2019-12-28 | 2020-05-12 | 桂林电子科技大学 | Parallel Michelson integrated interferometer based on three-core optical fiber |
| CN110953995A (en) * | 2019-12-30 | 2020-04-03 | 北京交通大学 | Three-dimensional space coordinate positioning device based on multi-core optical fiber |
| CN111609819A (en) * | 2020-04-10 | 2020-09-01 | 桂林电子科技大学 | Super-smooth surface roughness measuring system |
| CN111609819B (en) * | 2020-04-10 | 2022-03-25 | 桂林电子科技大学 | Super-smooth surface roughness measuring system |
| CN112764164A (en) * | 2021-01-28 | 2021-05-07 | 南开大学 | Optical fiber device, manufacturing method and optical fiber internal acoustic Mach-Zehnder interferometer |
| CN113589438A (en) * | 2021-07-29 | 2021-11-02 | 西南交通大学 | Linear polarization Sagnac total reflection mirror based on double-core optical fiber, method and optical system |
| CN113608295A (en) * | 2021-08-04 | 2021-11-05 | 西南交通大学 | Fiber-integrated adjustable optical comb filter, method and optical system |
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