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
收藏
页码：1923 / 1925
页数：3
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