Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source

被引：2
作者：
Cranch, GA [1 ]
Flockhart, GMH [1 ]
Kirkendall, CK [1 ]
机构：
[1] SFA Inc, Largo, MD 20774 USA
来源：
17TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, PTS 1 AND 2 | 2005年 / 5855卷
关键词：
mode-locked laser; fiber Bragg grating sensor; time division multiplexing;
D O I：
10.1117/12.623816
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
An efficient multiplexing method for fiber Bragg grating sensors based on a broadband mode-locked laser source and interferometric interrogation is described. The system has the capability to interrogate several hundred fiber Bragg grating sensors on a single fiber, whilst achieving sub-microstrain resolution over bandwidths greater than 100 kHz. A demonstration system with 8 sensors is presented, which achieves strain resolutions less than 213 n epsilon/Hz(1/2) up to 100 Hz.
引用
收藏
页码：238 / 241
页数：4
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