Brillouin optical correlation domain reflectometry with double frequency modulation and phase modulation

Ora Matsuoka; Masato Kishi; Kazuo Hotate

doi:10.1117/12.2059432

2 June 2014 Brillouin optical correlation domain reflectometry with double frequency modulation and phase modulation

Ora Matsuoka, Masato Kishi, Kazuo Hotate

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91576G (2014) https://doi.org/10.1117/12.2059432
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

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.

Citation Download Citation

Ora Matsuoka, Masato Kishi, and Kazuo Hotate "Brillouin optical correlation domain reflectometry with double frequency modulation and phase modulation", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91576G (2 June 2014); https://doi.org/10.1117/12.2059432

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