Title :
Time-Division Multiplexing Fiber Grating Sensor With a Tunable Pulsed Laser
Author :
Dong, Bo ; He, Shiya ; Hu, Shuyang ; Tian, Dawei ; Lv, Junfeng ; Zhao, Qida
Author_Institution :
Inst. of Modern Opt., Nankai Univ., Tianjin
Abstract :
A novel time-division-multiplexing fiber Bragg grating (FBG) sensor with a tunable pulsed laser is proposed and demonstrated. A tunable pulsed fiber laser based on a matched FBG is applied. The wavelengths of the sensing FBGs are obtained by detecting maximum voltages with a photodiode, which avoids a complex demodulation process. The advantages of the sensor include simple structure, high signal-to-noise ratio, and the sensing signals obtained by detecting the maximum voltages
Keywords :
Bragg gratings; fibre lasers; fibre optic sensors; optical communication equipment; optical fibre communication; optical fibres; photodiodes; remote sensing by laser beam; time division multiplexing; fiber Bragg grating; fiber grating sensor; maximum voltage detection; photodiode; sensing signals; signal-to-noise ratio; time-division multiplexing; tunable pulsed laser; Bragg gratings; Demodulation; Fiber gratings; Fiber lasers; Optical fiber sensors; Optical pulses; Photodiodes; Signal to noise ratio; Tunable circuits and devices; Voltage; Fiber Bragg grating (FBG) sensor; matched fiber Bragg grating (FBG); stepper motor; time-division multiplexing (TDM); tunable pulsed laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.887197
