Title :
Enlargement of measurement range by double frequency modulations in one-laser Brillouin correlation-domain distributed discrimination system
Author :
Zou, Weiwen ; He, Zuyuan ; Hotate, Kazuo
Author_Institution :
Dept. of Electr. Eng. & Inf. Syst., Univ. of Tokyo, Tokyo, Japan
Abstract :
A new scheme based on double frequency modulations is proposed to enlarge the measurement range in Brillouin correlation-domain distributed discrimination system with one laser source. The measurement range is increased from ~5 m to ~34 m with the spatial resolution maintained to be 10 cm.
Keywords :
light sources; optical harmonic generation; optical modulation; stimulated Brillouin scattering; Brillouin correlation-domain; distributed discrimination system; double frequency modulations; laser source; measurement range; spatial resolution; Frequency measurement; Frequency modulation; Scattering; Strain; Temperature measurement; Temperature sensors;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
