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 language | English |
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Article number | 5443649 |
Pages (from-to) | 1117-1124 |
Number of pages | 8 |
Journal | IEEE Sensors Journal |
Volume | 10 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2010 |