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A novel fiber grating sensing technique utilized for vibration detection is proposed and experimentally demonstrated. A single wavelength laser is formed by polarization controllers and polarization maintaining fiber (PMF) to construct the high birefringence (Hi-Bi) Sagnac loop, PMF combined with erbium-doped fiber, single mode fiber and polarizer. The cantilever glued to an FBG is used as a sensor probe, and the linear edge of Sagnac ring laser are used to demodulate fiber optic seismic vibration signal. Sagnac ring theory and its edge effects are described in detail, and numerical simulation and experiment show that the vibration signal detection system is adjusted periodically in a range from L1 to L1 + L2, sensitivity goes up to 38.2 W/nm of discrimination, the linearity is 0.9996, and the dynamic range is 4070 dB, these meeting the requirements for vibration detection technical parameters.
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Keywords:
- optical fiber /
- vibration detection /
- Hi-Bi PMF Sagnac loop /
- fiber laser
[1] Sun Q Z, Liu D M, Wang J 2007 Acta Phys. Sin. 56 5903 (in Chinese) [孙琪真, 刘德明, 王健 2007 物理学报 56 5903]
[2] Garcia-Souto J A, Lamela-Rivera H 2006 Opt. Express 14 9679
[3] Wang Y P, Rao Y J, Ran Z L, Zhu T 2003 Acta Phys. Sin. 52 1432 (in Chinese) [王义平, 饶云江, 冉曾令, 朱涛 2003 物理学报 52 1432]
[4] Qiao X G, Jia Z A, Fu H W, Li M, Zhou H 2004 Acta Phys. Sin. 53 494 (in Chinese) [乔学光, 贾振安, 傅海威, 李明, 周红 2004 物理学报 53 494]
[5] Xue L F, Zhao Q D, Liu J G, Guo T, Huang G L, Liu L H 2006 Acta Phys. Sin. 55 2804 (in Chinese) [薛力芳, 赵启大, 刘建国, 郭团, 黄桂岭, 刘丽辉 2006 物理学报 55 2804]
[6] Zhang J L, Yu C X, Wang K R, Zhao D X, Lin M M, Li C 2009 Acta Phys. Sin. 58 3988 (in Chinese) [张锦龙, 余重秀, 王葵如, 赵德新, 林妹妹, 李成 2009 物理学报 58 3988]
[7] Zhang C, Rao Y J, Jia X H, Chang L, Ran Z L 2010 Acta Phys. Sin. 59 5523 (in Chinese) [张 超, 饶云江, 贾新鸿, 苌亮, 冉曾令 2010 物理学报 59 5523]
[8] Jiang Y 2009 Advanced Optical Fiber Sensing Technology (Beijing: Science Press) p8 (in Chinese) [江毅 2009 高级光纤传感技术 (北京: 科学出版社) 第8页]
[9] Chung S, Kim J, Yu B, Lee B 2001 IEEE Phot. Technol. Lett. 13 12
[10] Wang J, Zheng K, Peng J, Liu L, Li J, Jian S 2009 Opt. Express 17 10573
[11] Feng C X 2009 MS Dissertation (Beijin: Beijing Jiaotong University) (in Chinese) [冯彩霞 2009 硕士学位论文 (北京: 北京交通大学)]
[12] Wang J, Zheng K, Li J, Liu L S, Chen G X, Jian S S 2009 Acta Phys. Sin. 58 7695 (in Chinese) [王静, 郑凯, 李坚, 刘利松, 陈根祥, 简水生 2009 物理学报 58 7695]
[13] Yan F P, Mao X Q, Wang L, Fu Y J, Wei H, Zheng K, Gong T R, Liu P, Tao P L, Jian S S 2009 Acta Phys. Sin. 58 6295 (in Chinese) [延凤平, 毛向桥, 王琳, 傅永军, 魏 淮, 郑凯, 龚桃荣, 刘鹏, 陶沛琳, 简水生 2009 物理学报 58 6295]
[14] Lim K S, Pua C H, Harun S W, Ahmad H 2010 Opt. Laser Technol. 42 377
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[1] Sun Q Z, Liu D M, Wang J 2007 Acta Phys. Sin. 56 5903 (in Chinese) [孙琪真, 刘德明, 王健 2007 物理学报 56 5903]
[2] Garcia-Souto J A, Lamela-Rivera H 2006 Opt. Express 14 9679
[3] Wang Y P, Rao Y J, Ran Z L, Zhu T 2003 Acta Phys. Sin. 52 1432 (in Chinese) [王义平, 饶云江, 冉曾令, 朱涛 2003 物理学报 52 1432]
[4] Qiao X G, Jia Z A, Fu H W, Li M, Zhou H 2004 Acta Phys. Sin. 53 494 (in Chinese) [乔学光, 贾振安, 傅海威, 李明, 周红 2004 物理学报 53 494]
[5] Xue L F, Zhao Q D, Liu J G, Guo T, Huang G L, Liu L H 2006 Acta Phys. Sin. 55 2804 (in Chinese) [薛力芳, 赵启大, 刘建国, 郭团, 黄桂岭, 刘丽辉 2006 物理学报 55 2804]
[6] Zhang J L, Yu C X, Wang K R, Zhao D X, Lin M M, Li C 2009 Acta Phys. Sin. 58 3988 (in Chinese) [张锦龙, 余重秀, 王葵如, 赵德新, 林妹妹, 李成 2009 物理学报 58 3988]
[7] Zhang C, Rao Y J, Jia X H, Chang L, Ran Z L 2010 Acta Phys. Sin. 59 5523 (in Chinese) [张 超, 饶云江, 贾新鸿, 苌亮, 冉曾令 2010 物理学报 59 5523]
[8] Jiang Y 2009 Advanced Optical Fiber Sensing Technology (Beijing: Science Press) p8 (in Chinese) [江毅 2009 高级光纤传感技术 (北京: 科学出版社) 第8页]
[9] Chung S, Kim J, Yu B, Lee B 2001 IEEE Phot. Technol. Lett. 13 12
[10] Wang J, Zheng K, Peng J, Liu L, Li J, Jian S 2009 Opt. Express 17 10573
[11] Feng C X 2009 MS Dissertation (Beijin: Beijing Jiaotong University) (in Chinese) [冯彩霞 2009 硕士学位论文 (北京: 北京交通大学)]
[12] Wang J, Zheng K, Li J, Liu L S, Chen G X, Jian S S 2009 Acta Phys. Sin. 58 7695 (in Chinese) [王静, 郑凯, 李坚, 刘利松, 陈根祥, 简水生 2009 物理学报 58 7695]
[13] Yan F P, Mao X Q, Wang L, Fu Y J, Wei H, Zheng K, Gong T R, Liu P, Tao P L, Jian S S 2009 Acta Phys. Sin. 58 6295 (in Chinese) [延凤平, 毛向桥, 王琳, 傅永军, 魏 淮, 郑凯, 龚桃荣, 刘鹏, 陶沛琳, 简水生 2009 物理学报 58 6295]
[14] Lim K S, Pua C H, Harun S W, Ahmad H 2010 Opt. Laser Technol. 42 377
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