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Proceedings Paper

Brillouin optical correlation domain reflectometry with double frequency modulation and phase modulation
Author(s): Ora Matsuoka; Masato Kishi; Kazuo Hotate
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Paper Abstract

We propose and experimentally demonstrate a Brillouin optical correlation domain reflectometry system with double frequency modulation and phase modulation. Double frequency modulation onto the laser is used for expanding the measurement range, and phase modulation onto the reference lightwave is used for reducing background noise to enhance resolution and strain dynamic range. A section with 15 cm length and 7000 micro-strain was detected in 1250 m single mode fiber with 5.2 cm nominal spatial resolution.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91576G (2 June 2014); doi: 10.1117/12.2059432
Show Author Affiliations
Ora Matsuoka, The Univ. of Tokyo (Japan)
Masato Kishi, The Univ. of Tokyo (Japan)
Kazuo 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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