Title :
A Short-Pulsed MOPA Source and Its Application in Distributed Optical Fiber Raman Temperature Sensing System
Author :
Zhang, Lei ; Feng, Xue ; Zhao, Qiang ; Liu, Xiaoming
Author_Institution :
State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory, for Information Science and Technology, Tsinghua University, Beijing 100084, China
fDate :
July 29 2007-Aug. 11 2007
Abstract :
We have demonstrated a short-pulsed optical fiber MOPA source, which generates 12 W, >1 ns pulses at a wavelength of 1550 nm. The repetition rate of the pulses can be adjusted continuously from 10 Hz to 70MHz. The source is tested in a 2.4 km distributed fiber Raman temperature sensing system, achieved a temperature resolution of plusmn5K. By using wavelet transformation, the temperature resolution is improved to plusmn1K.
Keywords :
Raman lasers; fibre optic sensors; laser beams; light sources; optical fibre amplifiers; optical pulse generation; temperature measurement; temperature sensors; wavelet transforms; distributed fiber Raman temperature sensing system; power 12 W; pulse generation; short-pulsed optical fiber MOPA source; temperature resolution; time 1 ns; wavelength 1550 nm; wavelet transformation; Erbium-doped fiber amplifier; Laser mode locking; Optical fiber couplers; Optical fiber testing; Optical fibers; Optical pulses; Pulse amplifiers; Pulse modulation; Space vector pulse width modulation; Temperature sensors;
Conference_Titel :
Nano-Optoelectronics Workshop, 2007. i-NOW '07. International
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-1591-5
DOI :
10.1109/INOW.2007.4302946
