Discriminative and distributed measurement of temperature and strain with time-division pump-probe-read light generation by single laser diode in simplified BOCDA system

T. Matsumoto; M. Kishi; K. Hotate

doi:10.1117/12.2059554

2 June 2014 Discriminative and distributed measurement of temperature and strain with time-division pump-probe-read light generation by single laser diode in simplified BOCDA system

T. Matsumoto, M. Kishi, K. Hotate

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91573W (2014) https://doi.org/10.1117/12.2059554
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

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.

Citation Download Citation

T. Matsumoto, M. Kishi, and K. Hotate "Discriminative and distributed measurement of temperature and strain with time-division pump-probe-read light generation by single laser diode in simplified BOCDA system", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91573W (2 June 2014); https://doi.org/10.1117/12.2059554

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