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Proceedings Paper

DFB fiber laser hydrophone based on a intensity demodulation
Author(s): Xingliang Li; Quan Chai; Jianzhong Zhang; QianQian Hao; Qi Li; Ping Lu; Weimin Sun; Libo Yuan; Gangding Peng
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Paper Abstract

DFB Fiber laser based sensors, including strain sensing, temperature sensing and acoustic sensing, have attached a lot interests because of high performance and small size.We demonstrate a simple DFB fiber laser hydrophone and its demodulation is realized by a simple intensity based scheme. The reasons of the intensity modulation of DFB fiber laser, including gain demodulation, feedback effect, and polarization demodulation, are discussed in detail based on rate equations. The frequency response of the DFB fiber laser based hydrophone is measured in an anechoic water pool and compared with a referenced B&K8104 hydrophone.

Paper Details

Date Published: 15 November 2010
PDF: 5 pages
Proc. SPIE 7847, Optoelectronic Devices and Integration III, 78471F (15 November 2010); doi: 10.1117/12.868602
Show Author Affiliations
Xingliang Li, Harbin Engineering Univ. (China)
Quan Chai, Harbin Engineering Univ. (China)
Jianzhong Zhang, Harbin Engineering Univ. (China)
QianQian Hao, Harbin Engineering Univ. (China)
Qi Li, Harbin Engineering Univ. (China)
Ping Lu, Communications Research Ctr. Canada (Canada)
Weimin Sun, Harbin Engineering Univ. (China)
Libo Yuan, Harbin Engineering Univ. (China)
Gangding Peng, The Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 7847:
Optoelectronic Devices and Integration III
Xuping Zhang; Hai Ming; Alan Xiaolong Wang, Editor(s)

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