Optical-fiber accelerometer array: Nano-g infrasonic operation in a passive 100 km loop

Ian C.M. Littler, Malcolm B. Gray, Timothy Tien Yue Lam, Jong H. Chow, Daniel A. Shaddock, David E. McClelland

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    In this paper, an all-optical accelerometer array system is presented, ideally suited for permanent seismic seabed arrays and passive surveillance. A directly measured accelerometer resolution of better than 60 ng √ Hz(-145 dB re g √ Hz) down to 10 Hz is achieved for all channels in a completely passive 100 km fiber loop. The detection bandwidth is chosen to be from 10 to 300 Hz, with a closed-loop dynamic range of 120 dB. The crosstalk between channels spaced by 100 GHz is better than -64 dB.

    Original languageEnglish
    Article number5443649
    Pages (from-to)1117-1124
    Number of pages8
    JournalIEEE Sensors Journal
    Volume10
    Issue number6
    DOIs
    Publication statusPublished - 2010

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