DFB fiber laser Hydrophone based on a intensity demodulation

被引：2

作者：

Li, Xingliang ^{[1
]}

Chai, Quan ^{[1
]}

Zhang, Jianzhong ^{[1
]}

Hao, QianQian ^{[1
]}

Li, Qi ^{[1
]}

Lu, Ping ^{[2
]}

Sun, Weimin ^{[1
]}

Yuan, Libo ^{[1
]}

Peng, Gangding ^{[3
]}

机构：

[1] Harbin Engn Univ, Harbin, Peoples R China

[2] Commun Res Ctr, Ottawa, ON K2K2Y7, Canada

[3] Univ New S Wales, Sydney, NSW, Australia

来源：

OPTOELECTRONIC DEVICES AND INTEGRATION III | 2010年 / 7847卷

关键词：

DFB(distributed feedback); Fiber laser; hydrophone; FBG(fiber Bragg grating); intensity demodulation; SENSOR; STRAIN;

D O I：

10.1117/12.868602

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页数：5

共 10 条

[1] Fiber gratings in lasers and amplifiers [J].