scholarly journals 152km-range single-ended distributed acoustic sensor based on in-line optical amplification and micromachined enhanced-backscattering fiber

2020 ◽  
Author(s):  
Ali Masoudi ◽  
Martynas Beresna ◽  
Gilberto Brambilla
Keyword(s):  
Acoustic Sensor ◽  
Optical Amplification ◽  
Enhanced Backscattering

scholarly journals Numerical Modelling of a Distributed Acoustic Sensor Based on Ultra-Low Loss-Enhanced Backscattering Fibers

Sensors ◽  
2021 ◽  
Vol 21 (20) ◽  
pp. 6869
Author(s):  
Lieke Dorine van van Putten ◽  
Ali Masoudi ◽  
James Snook ◽  
Gilberto Brambilla
Keyword(s):  
Numerical Modelling ◽  
Signal To Noise Ratio ◽  
Single Mode ◽  
Acoustic Sensor ◽  
Low Loss ◽  
Signal To Noise ◽  
Optical Components ◽  
Enhanced Backscattering ◽  
Noise Ratio

In this study, a distributed acoustic sensor (DAS) was numerically modeled based on the non-ideal optical components with their noises and imperfections. This model is used to compare the response of DAS systems to standard single-mode fibers and ultra-low loss-enhanced backscattering (ULEB) fibers, a fiber with an array of high reflective points equally spaced along its length. It is shown that using ULEB fibers with highly reflective points improves the signal-to-noise ratio and linearity of the measurement, compared with the measurement based on standard single-mode fibers.

Enhanced Backscattering from Rough Surfaces

1991 ◽  
Author(s):  
J. C. Dainty
Keyword(s):  
Rough Surfaces ◽  
Enhanced Backscattering

Optical Fiber for Acoustic Sensor Applications

1993 ◽  
Author(s):  
James R. Onstott
Keyword(s):  
Optical Fiber ◽  
Acoustic Sensor ◽  
Sensor Applications

Acoustic Sensor for Voice with Embedded Physiology

1999 ◽  
Author(s):  
Michael V. Scanlon
Keyword(s):  
Acoustic Sensor
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