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Suppression of Rayleigh Scattering Noise in a TDM Multiplexed Interferometric Sensor System

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4 Author(s)
Erlend Ronnekleiv ; Optoplan AS, box 1963, 7448 Trondheim, Norway. Phone/fax +47 7382 0516 / 7382 0501., erlend.ronnekleiv@optoplan.com ; Ole Henrik Waagaard ; Dag Thingbo ; Stig Forbord

Suppression of Rayleigh induced noise in an interferometric sensor system employing pulsed heterodyne interrogation is demonstrated through a combination of coherence modulation and frequency shifting of noise within the sampling bandwidth. > 40 dB suppression is achieved.

Published in:

Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on

Date of Conference:

24-28 Feb. 2008