Research of positioning technology of Mach-Zehnder interferometer
-
摘要: 为了研究不同线宽的激光光源对马赫-曾德尔光纤干涉仪定位精度的影响，采用互相关定位算法原理搭建了一套扰动定位系统。采用3kHz和1MHz的半导体激光器作为系统输出光源，并对其进行多次的定点扰动，将得到的实验数据根据互相关原理做计算，并与理论推导结果进行了对比分析。结果表明，在时间域采样速率都为100MHz的情况下，系统采用3kHz的激光器时，平均定位误差为34.4m，远小于采用1MHz光源下225.4m的定位误差；在干涉仪信号臂中接入3m单模光纤，使信号臂长度和参考臂长度基本相同，可以很大程度上抑制了系统的共模噪声；窄线宽激光器可以提高系统的定位精度。该研究对于干涉仪激光器的选取、系统性能参量的评估是有积极意义的。Abstract: In order to study effect of laser sources with different linewidthes on positioning accuracy of Mach-Zehnder fiber interferometers, a set of disturbance location system was built using the principle of mutual-correlation positioning algorithm.3kHz and 1MHz semiconductor lasers were used as system output light sources respectively, and were subjected to multiple fixed-point disturbances.The experimental data were calculated according to the principle of mutual correlation, and the results were compared and analyzed.The results show that, in the case of time domain sampling rate of 100MHz, average positioning error of 3kHz laser is 34.4m, far less than positioning error of 225.4m for 1MHz light source.The method of using 3m single-mode fiber in the signal arm of the interferometer to make the signal arm and the reference arm basically the same length, largely suppresses the common-mode noise of the system.Narrow linewidth laser can improve the positioning accuracy of the system.The study has positive significance for the selection of interferometer lasers and the evaluation of system performance parameters.
-
-
![]()
Figure 6. a—before common mode noise suppression b—after common mode noise suppression
Table 1 3kHz laser source positioning
maximum point 497527 497527 497530 497532 497522 497527 497533 497525 497518 497516 time error Δt/μs 0.185 0.185 0.215 0.235 0.135 0.185 0.245 0.165 0.095 0.075 positioning error/m 37 37 43 47 27 37 49 33 19 15 
下载: 导出CSV
Table 2 1MHz laser source positioning
maximum point 497623 497622 497623 497623 497619 497632 497615 497611 497627 497617 time error Δt/μs 1.145 1.135 1.145 1.145 1.105 1.235 1.065 1.025 1.185 1.085 positioning error/m 229 227 229 229 221 247 213 205 237 217
下载: 导出CSV
Table 3 Positioning errors before and after common mode rejection
number of disturbances 1 2 3 4 5 6 7 8 9 10 before common mode
suppression/m74 63 91 61 73 68 61 81 73 69 after common mode
suppression/m37 37 43 47 27 37 49 33 19 15
下载: 导出CSV
-
[1] ZOU D B, LIU H, ZHAO L, et al. Research of signal recognition of distributed optical fiber vibration sensors[J]. Laser Technology, 2016, 40(1):86-89(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=jgjs201601020
[2] XIE Sh R, ZOU Q L, TU Y J, et al. A study on real-time location method for long distance dual M-Z interferometric vibration sensor[J]. Journal of Optoelectronics·Laser, 2009, 20(8):1020-1024(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdzjg200908009
[3] LIU B, YANG Y F, ZHANG J, et al. A fiber fence system based on M-Z interferometer[J]. Acta Photonica Sinica, 2007, 36(6):1013-1017(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gzxb200706012
[4] CHEN W M, WU J, TAN J, et al. Locating technology for twin Mach-Zehnder distributed optical fiber sensing system[J].Acta Optica Sinica, 2007, 27(12):2128-2132(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gxxb200712005
[5] ZHANG Y, CHEN J M, LI G, et al. Locatin method of distributed fiber-optic perimeter security system based on Mach-Zehnder interfe-rometer[J]. Chinese Journal of Lasers, 2012, 39(6):605005(in Chinese).
[6] YANG Sh Zh, ZHANG Zh Y, SHAO L Y, et al. A quadratic correlation method for vibration localization based on dual M-Z fiber sensor[J]. Acta Photonica Sinica, 2017, 46(7):706004(in Chinese). http://d.old.wanfangdata.com.cn/Periodical/gzxb201707009
[7] CHEN Q N, LIU T G, LIU K, et al. A positioning algorithm based on super-resolution time delay estimation in dual Mach-Zehnder interferometry disturbance sensor[J].Proceedings of the SPIE, 2014, 9274:92740U. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=CC0214749224
[8] LIN W T, LOU Sh Q, LIANG Sh. A modified phase generation carrier technique for fiber-optic distributed disturbance sensor[J]. Optik-International Journal for Light and Electron Optics, 2014, 125(3):942-945. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=3e771647b611dece5dae039be269411f
[9] SUN Q Zh, LIU D M, WANG J, et al. Distributed fiber-optic vibration sensor using a ring Mach-Zehnder interferometer[J]. Optics Communications, 2008, 281(6):1538-1544. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=12e61dedbae772b84ce7e2de8c98eb52
[10] CHEN Q N, LIU T G, LIU K, et al. An Improved positioning algorithm with high precision for dual Mach-Zehnder interferometry disturbance sensing system[J]. Journal of Lightwave Technology, 2015, 33(10):1954-1960. http://cn.bing.com/academic/profile?id=947dea34ce83a43d4a336cb7b6831656&encoded=0&v=paper_preview&mkt=zh-cn
[11] AN Y, FENG H, ZHOU Y, et al. A control method to eliminate polarization-induced Phase distortion in dual Mach-Zehnder fiber interferometer[C]//Ukacc International Conference on Control. New York, USA: IEEE, 2012: 988-991.
[12] CHEN Q N, LIU T G, LIU K, et al. An elimination method of polarization-induced phase shift and fading in dual Mach-Zehnder interferometry disturbance sensing system[J]. Journal of Lightwave Technology, 2013, 31(19):3135-3141. http://cn.bing.com/academic/profile?id=5ea048a2826a627343526a294137580d&encoded=0&v=paper_preview&mkt=zh-cn
[13] JIANG J Sh, JIANG Y, LIU D, et al. Fiber-optic perimeter security system based on dual Mach-Zehnder interferometer structure[J]. Optical Technique, 2015, 41(3):193-196(in Chinese). http://d.old.wanfangdata.com.cn/Periodical/gxjs201503001
[14] JIN J, LIANG D K, ZENG J, et al. Study on distributed fiber-optic detecting system based on Mach-Zehnder interferometer[J]. Optoelectronic Technology, 2013, 33(3):160-163(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdzjs201303004
[15] WANG M Y, SHENG L, TAO Y, et al. Effect of laser linewidth on characteristics of ϕ-OTDR system[J]. Laser Technology, 2016, 40(4):615-618(in Chinese). http://en.cnki.com.cn/Article_en/CJFDTOTAL-JGJS201604033.htm
[16] SHI Y L, ZHANG Y, SUN L J. Influence of lasers on phase noise of optoelectronic oscillators[J]. Laser Technology, 2015, 39(6):761-764(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=jgjs201506006
[17] CHEN Q N. Research on key technologies of dual Mach-Zehnder distributed vibration sensing system[D]. Tianjin: Tianjin University, 2015: 23-26(in Chinese).
[18] JIN J. Research of distributed fiber optic cable detection system based on the structure of Mach-Zehnder[D].Nanjing: Nanjing University of Aeronautics and Astronautics, 2013: 29-32(in Chinese).
[19] LIU F, XIE SH R, QIU X K, et al. Efficient common-mode noise suppression for fiber-optic interferometric sensor using heterodyne demodulation[J]. Journal of Lightwave Technology, 2016, 34(23):5453-5461. http://cn.bing.com/academic/profile?id=077e3ab553707d0faff1b421c01e4a8a&encoded=0&v=paper_preview&mkt=zh-cn
[20] LI R, LIANG Sh, XIAO W. A low cost design to eliminate polarization induced phase shift for dual Mach-Zehnder fiber interferometer[J]. Proceedings of the SPIE, 2015, 9656:965609. http://cn.bing.com/academic/profile?id=ccd719c9a982835e79a2a4d073a3ea62&encoded=0&v=paper_preview&mkt=zh-cn
[21] HUANG W W. Research on polarization control technology in distributed optical fiber fence protection system[D]. Chengdu: Southwest Jiaotong University Master Degree Thesis, 2016: 16-17(in Ch-inese).
[22] CHEN X G. A new type of fiber-optic interferometer with high sensitivity and common mode compensation[J]. Acta Photonica Sinica, 1992, 12(2):188-192(in Chinese). http://cn.bing.com/academic/profile?id=c38f22112987d117cdfa2a5f5d333900&encoded=0&v=paper_preview&mkt=zh-cn
计量
- 文章访问数: 6
- HTML全文浏览量: 0
- PDF下载量: 8