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Proceedings Paper

Influence of laser phase noise on Brillouin optical time-domain analysis sensors
Author(s): A. Minardo; L. Zeni
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Paper Abstract

This paper presents a numerical study of the phase noise from the laser in Brillouin Optical Time-Domain analysis (BOTDA) sensors. Due to laser phase noise, the phase shift cumulated by pump and probe beams during interaction in a generic fiber position is a stochastic variable, with zero mean and variance increasing with pulse duration. For negligibly small pulse leakage, the induced noise is independent of fiber length; otherwise, it increases with fiber length as long as the laser coherence length is longer than fiber.

Paper Details

Date Published: 30 May 2016
PDF: 4 pages
Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99162T (30 May 2016); doi: 10.1117/12.2236619
Show Author Affiliations
A. Minardo, Seconda Univ. degli Studi di Napoli (Italy)
L. Zeni, Seconda Univ. degli Studi di Napoli (Italy)

Published in SPIE Proceedings Vol. 9916:
Sixth European Workshop on Optical Fibre Sensors
Elfed Lewis, Editor(s)

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