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Proceedings Paper

Discriminative and distributed measurement of temperature and strain with time-division pump-probe-read light generation by single laser diode in simplified BOCDA system
Author(s): T. Matsumoto; M. Kishi; K. Hotate
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Paper Abstract

A simplified BOCDA system for discriminative and distributed measurement of temperature and strain is proposed and demonstrated, in which pump, probe and read light are generated with single laser diode in a time-division way. A linearly-polarized pump and probe light launched in X-polarization axis of a polarization maintaining fiber are used to generate Brillouin dynamic grating, and the orthogonally polarized read light is used to observe Brillouin dynamic grating reflection. We have successfully demonstrated the discriminative and distributed measurement of temperature and strain in the detection along a 70 cm strain applied area.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91573W (2 June 2014); doi: 10.1117/12.2059554
Show Author Affiliations
T. Matsumoto, The Univ. of Tokyo (Japan)
M. Kishi, The Univ. of Tokyo (Japan)
K. Hotate, The Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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