Demonstration of a passive subpicostrain fiber strain sensor

被引：94

作者：

Chow, JH ^{[1
]}

McClelland, DE

Gray, MB

Littler, ICM

机构：

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

[2] Univ Sydney, Sch Phys, Ctr Ultrahigh Bandwidth Devices Opt Syst, Sydney, NSW 2006, Australia

来源：

OPTICS LETTERS | 2005年 / 30卷 / 15期

关键词：

D O I：

10.1364/OL.30.001923

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a fiber Fabry-Perot (FFP) sensor that is capable of detecting subpicostrain signals, from 100 Hz and extending beyond 100 kHz, using the Pound-Drever-Hall (PDH) frequency locking technique. A low-power diode laser at 1550 nm is locked to a free-space reference cavity to suppress its free-running frequency noise, thereby stabilizing the laser. The stabilized laser is then used to interrogate a FFP sensor whose PDH error signal yields the instantaneous fiber strain. (c) 2005 Optical Society of America.

引用

页码：1923 / 1925

页数：3