Abstract
The operating principle and theory of a fiber laser bender hydrophone
is presented. We report experimental results for a micro-engineered silicon
fiber laser hydrophone. The hydrophone has a flat pressure responsivity of
107 dB re Hz/Pa over a bandwidth exceeding 5 kHz, corresponding to ocean noise
limited acoustic sensitivity. The first structural resonance of the hydrophone
is 9 kHz in water and the acceleration rejection is in excess of 0 dB re ms$^{{-}2}$/Pa up to
5 kHz.
© 2011 Crown
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