High performance DAS-based optical fiber hydrophone

Hongjian Guan,Bing Han,Zewen Han,Wenyu Wang,Zengling Ran,Guofeng Yan,Yuan Gong,Yunjiang Rao

High performance DAS-based optical fiber hydrophone

2020

Hongjian Guan
Bing Han
Zewen Han
Wenyu Wang
Zengling Ran
Guofeng Yan
Yuan Gong
Yunjiang Rao

A DAS-based optical fiber hydrophone is reported with greatly enhanced sensitivity and infrasonic frequency response. The average acoustic pressure sensitivity is -131.0 dB re rad/μPa in 1 Hz - 1024 Hz.

Keywords:

erbium doped fiber amplifier
enhanced sensitivity
Sound pressure
Optical fiber
Optics
Optical fiber cable
Materials science
Infrasound
Hydrophone
Frequency response

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