Multiplexing Bragg gratings using combined wavelength and spatial division techniques with digital resolution enhancement

被引：18
|
作者：
Hu, Y
Chen, S
Zhang, L
Bennion, I
机构：
[1] S Bank Univ, Sch Elect Elect & Informat Engn, London SE1 0AA, England
[2] Univ Maryland, Dept Mech Engn, Smart Mat & Struct Res Ctr, College Pk, MD 20742 USA
[3] Aston Univ, Photon Res Grp, Birmingham B4 7ET, W Midlands, England
来源：
ELECTRONICS LETTERS | 1997年 / 33卷 / 23期
关键词：
fibre optic sensors; gratings in fibres; multiplexing equipment;
D O I：
10.1049/el:19971326
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：
A novel multiplexing technique is described, which employs an imaging spectrograph to interrogate fibre Bragg gratings in multiple fibre channels simultaneously, and digital algorithms to enhance the spectral resolution. An equivalent strain sensing resolution of 1.6 mu epsilon has been achieved in the preliminary experiments.
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页码：1973 / 1975
页数：3
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