Multi-point interrogation of FBG sensors using cascaded flexible wavelength-division Sagnac loop filters

被引：50
作者：
Kim, Chang-Seok [1 ]
Lee, Tae Ho
Yu, Yun Sik
Han, Young-Geun
Lee, Sang Bae
Jeong, Myung Yung
机构：
[1] Pusan Natl Univ, Dept Nanosyst & Nanoproc Engn, Joint Res Ctr, PNU IGB, Pusan 609735, South Korea
[2] Dong Eui Univ, Dept Phys, Pusan 614714, South Korea
[3] Korea Inst Sci & Technol, Photon Res Ctr, Seoul 136791, South Korea
来源：
OPTICS EXPRESS | 2006年 / 14卷 / 19期
关键词：
D O I：
10.1364/OE.14.008546
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple optical signal demodulation technique is demonstrated for multi-point interrogation of fiber Bragg grating sensors. The wavelength-division responses of polarization-maintaining fiber Sagnac loop filters are flexibly controlled to interrogate the simultaneous optical intensity changes from the independent wavelength shifts of multiple fiber Bragg grating sensors. Experimental performance is also demonstrated to show the simultaneous detection of the separated FBG sensing signals by individual photo detectors. (c) 2006 Optical Society of America.
引用
收藏
页码：8546 / 8551
页数：6
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