Fiber-optic interferometric sensor arrays with freedom from source phase-induced noise

J. L. Brooks, M. Tur, B. Y. Kim, K. A. Fesler, H. J. Shaw

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

We propose arrays of all-passive remote sensors with freedom from both source phase-induced intensity noise and cross talk between sensors. These arrays employ high-duty-cycle time-domain addressing, utilize laser diodes, and have downlead insensitivity. A synthetic heterodyne demodulation technique is used to prevent environmentally induced signal fading. An experimental all-fiber implementation of a single remote sensor yielded a measured sensitivity of below 40 µrad/√VH-z at signal frequencies above 600 Hz.

Original languageEnglish
Pages (from-to)473-475
Number of pages3
JournalOptics Letters
Volume11
Issue number7
DOIs
StatePublished - Jul 1986

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