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Proceedings Paper

Brillouin optical correlation domain reflectometry with lock-in detection scheme
Author(s): Yuguo Yao; Masato Kishi; Kazuo Hotate
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Paper Abstract

We have proposed a Brillouin optical correlation domain reflectometry (BOCDR) with lock-in detection scheme. The weak and noisy spontaneous Brillouin signal is output from the electrical spectrum analyzer as an analog signal, and detected synchronously and amplified using a lock-in amplifier. By further introducing phase modulation into the system to suppress the background optical noise, and using large frequency modulation amplitude with appropriate filtering, the performance of the system is enhanced. A 4cm spatial resolution is experimented over 100m measurement range.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96553L (1 July 2015); doi: 10.1117/12.2184392
Show Author Affiliations
Yuguo Yao, The Univ. of Tokyo (Japan)
Masato Kishi, The Univ. of Tokyo (Japan)
Kazuo Hotate, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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