Acoustic properties of a fibre-laser microphone

J. P F Wooler, B. Hodder, R. I. Crickmore

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In this paper we present the design of an optical microphone incorporating a distributed feedback fibre-laser sensor. The acoustic frequency response of the device is characterized at low frequencies (up to 250 Hz) and found to deliver a wavelength responsivity of -62 dB re 1 nm Pa-1. Experimental results are compared to a theoretical description of the device that is based upon a mass-spring model. © 2007 IOP Publishing Ltd.

Original languageEnglish
Article number042
Pages (from-to)884-888
Number of pages5
JournalMeasurement Science and Technology
Volume18
Issue number3
DOIs
Publication statusPublished - 1 Mar 2007

Keywords

  • Fibre laser
  • Fibre-optic
  • Microphone
  • WDM

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