Improved PGC demodulation algorithm based on optical fiber laser hydrophone

Yanli RAN; Jingli NI; Runqiu FU; Deming LIU

doi:10.5768/JAO202041.0208001

[1] 张仁和, ZHANG Renhe, 倪明, NI Ming. Principle and applications of the fiber optic hydrophone[J]. Physics, 33, 503-507(2004).

[2] GRATTAN K T V, SUN T. Fiber optic sensor technology: an overview[J]. Sensors and Actuators A: Physical, 82, 40-61(2000).

[3] [3] JAGDISH P S, KRISHNAN B, ALEXER P, et al. Optical fiber senss their applications[J]. SPIE, 2001, 4417 : 99106 .

[4] CRANCH G A, NASH P J. Large-scale multiplexing of interferometric fiber-optic sensors using TDM and DWDM[J]. Journal of Lightwave Technology, 19, 687-699(2001).

[7] 张文涛, ZHANG Wentao, 李芳, LI Fang. Recent progresses in fiber laser hydrophone[J]. Journal of Integration Technology, 4, 1-14(2015).

[9] ZHANG W T, LI F, LIU Y L. Ultrathin FBG pressure sensor with enhanced responsivity[J]. IEEE Photonics Technology Letters, 19, 1553-1555(2007).

[10] ZHANG W T, LIU Y L, LI F. Fiber laser hydrophone based on double diaphragms: theory and experiment[J]. Journal of Lightwave Technology, 26, 1349-1352(2008).

[11] ZHANG F X, ZHANG W T, LI F. DFB fiber laser hydrophone with an acoustic low-pass filter[J]. IEEE Photonics Technology Letters, 23, 1264-1266(2011).

[12] 唐波, TANG Bo, 黄俊斌, HUANG Junbin, 顾宏灿, GU Hongcan. Low acceleration sensitivity DFB fiber laser hydrophone[J]. Chinese Journal of Lasers, 45, 300-307(2018).

[14] 孙韦, SUN Wei, 于淼, YU Miao, 常天英, CHANG Tianying. Research and improvement based on PGC demodulation method[J]. Acta Photonica Sinica, 47, 221-228(2018).

[15] 朱俊, ZHU Jun, 王强, WANG Qiang, 谷小红, GU Xiaohong. Mixed interferometric distributed fiber optic sensor PGC demodulation module design and experimental data analysis[J]. Journal of Applied Optics, 36, 660-666(2015).

[17] ZHANG A L, LI D. Interferometric sensor with a PGC-AD-DSM demodulation algorithm insensitive to phase modulation depth and light intensity disturbance[J]. Applied Optics, 57, 7950(2018).