Title :
Suppression of Rayleigh Scattering Noise in a TDM Multiplexed Interferometric Sensor System
Author :
Ronnekleiv, Erlend ; Waagaard, Ole Henrik ; Thingbo, Dag ; Forbord, Stig
Author_Institution :
Optoplan AS, Trondheim, Norway
Abstract :
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.
Keywords :
Rayleigh scattering; fibre optic sensors; interferometers; light coherence; time division multiplexing; Rayleigh scattering; TDM multiplexing; coherence modulation; frequency shifting; interferometric sensor system; noise suppression; pulsed heterodyne interrogation; Coherence; Frequency; Interferometers; Optical fiber polarization; Optical fiber sensors; Phase modulation; Pulse modulation; Rayleigh scattering; Sensor systems; Time division multiplexing;
Conference_Titel :
Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-55752-856-8
DOI :
10.1109/OFC.2008.4528405
