20-mm-Diameter Interferometric Hydrophone Towed Array Based on Fiber Bragg Gratings

被引：20

作者：

Guo Zhen ^{[1
]}

Gao Kan ^{[1
]}

Yang Hui ^{[1
]}

Dai Zhiguo ^{[1
]}

Wu Bingyan ^{[1
]}

Zhang Jun ^{[1
]}

机构：

[1] China Elect Technol Grp Corp, Res Inst 23, Shanghai 200437, Peoples R China

来源：

ACTA OPTICA SINICA | 2019年 / 39卷 / 11期

关键词：

fiber optics; fiber hydrophone; fiber Bragg grating; crosstalk; polarization induced fading;

D O I：

10.3788/AOS201939.1106003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based on a interferometric optical fiber hydrophone, a fiber Bragg grating (FBG) hydrophone towed array with a diameter of 20 mm is realized. This single-fiber hydrophone array without splices is realized by using the multi-wavelength FBG continuous writing technique. The average acoustic pressure sensitivity of a hydrophone unit is -143.9 dB, and the fluctuation of sensitivity is limited within 3 dB. To suppress the crosstalk in the FBG hydrophone array, weak-reflectivity FBGs arc utilized, reducing the crosstalk to 53 dB. Moreover, polarization-induced fading is eliminated by three-channel polarization diversity receiving. A 32-element FBG hydrophone towed array with a diameter of 20 mm is fabricated.

引用

页数：6

共 13 条

[1]

BABB RJ, 1990, PROCEEDINGS OF THE SYMPOSIUM ON AUTONOMOUS UNDERWATER VEHICLE TECHNOLOGY, P194, DOI 10.1109/AUV.1990.110456

[2]

Cranch GA, 2003, J IEEE SENSORS J, V3

[3] Field demonstration of an 8-element fibre laser hydrophone array [J].

Foster, Scott ;

Tikhomirov, Alexei ;

Harrison, Joanne ;

van Velzen, John .

23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, 2014, 9157

[4]

Guo Z., 2016, ACTA OPT SINICA, V36

[5]

Guo Z, 2017, 2017 16 INT C OPT CO

[6] A fiber laser hydrophone array [J].

Hill, DJ ;

Nash, PJ ;

Jackson, DA ;

Webb, DJ ;

O'Neill, SF ;

Bennion, I ;

Zhang, L .

FIBER OPTIC SENSOR TECHNOLOGY AND APPLICATIONS, 1999, 3860 :55-66

[7]

Hwang A, 2004, OCEANS 04 MTS IEEE T

[8] Overview of high performance fibre-optic sensing [J].

Kirkendall, CK ;

Dandridge, A .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2004, 37 (18) :R197-R216

[9]

Liu J, 2017, RISKS, V5, DOI 10.3390/risks5020028

[10]

Tang B, 2017, Acta Optica Sinica, V37

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