High-resolution absolute frequency referenced fiber optic sensor for quasi-static strain sensing

被引：46

作者：

Lam, Timothy T. -Y. ^{[1
]}

Chow, Jong H. ^{[1
]}

Shaddock, Daniel A. ^{[1
]}

Littler, Ian C. M. ^{[1
]}

Gagliardi, Gianluca ^{[2
]}

Gray, Malcolm B.

McClelland, David E. ^{[1
]}

机构：

[1] Australian Natl Univ, Ctr Gravitat Phys, Dept Quantum Sci, Canberra, ACT 0200, Australia

[2] INO, Naples, Italy

来源：

APPLIED OPTICS | 2010年 / 49卷 / 21期

基金：

澳大利亚研究理事会;

关键词：

BRAGG GRATING STRAIN; LASER; STABILIZATION; PHASE;

D O I：

10.1364/AO.49.004029

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a quasi-static fiber optic strain sensing system capable of resolving signals below nanostrain from 20 mHz. A telecom-grade distributed feedback CW diode laser is locked to a fiber Fabry-Perot sensor, transferring the detected signals onto the laser. An (HCN)-C-13-N-14 absorption line is then used as a frequency reference to extract accurate low-frequency strain signals from the locked system. (C) 2010 Optical Society of America

引用

页码：4029 / 4033

页数：5

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