Nonlinear amplification in φ-OTDR for Distributed Acoustic Sensing
conference paper
A low-noise φ-OTDR sensor is developed by adding a 2-stage pre-amplification system mixing linear and nonlinear amplification in a 3x3 Michelson interferometric configuration. Its performance is evaluated by deploying it as a distributed acoustic sensing system in a survey well (sampling rate: 10 kHz), showing noise floor levels below 1 n?.
Topics
TNO Identifier
987174
ISSN
0277786X
ISBN
9781510665002
Publisher
SPIE
Source title
European Workshop on Optical Fibre Sensors, EWOFS 2023, 23-26 May 2023, Mons, Belgium
Collation
5 p.
Files
To receive the publication files, please send an e-mail request to TNO Repository.