Title :
Source phase-induced noise in unbalanced time domain multiplexed sensor networks
Author :
Sales, Salvador ; Capmany, Jose
Author_Institution :
Dept. de Comunicaciones, Univ. Politecnica de Valencia, Spain
fDate :
7/1/1995 12:00:00 AM
Abstract :
The dynamic range of many optical signal processing and sensing devices incorporating two-beam interferometers can be limited by random phase fluctuations of the optical source emission field. We report the theoretical expressions of the autocovariance function of the output intensity and the noise power spectral density due to the source phase-induced noise in unbalanced time domain multiplexed (TDM) sensor networks. Application of the results in the performance evaluation of all-fiber TDM sensor networks illustrating the important trade-offs between high duty cycle, sensitivity, and noise power are also presented
Keywords :
covariance analysis; fibre optic sensors; light interferometers; optical noise; phase noise; sensor fusion; time division multiplexing; all-fiber TDM sensor networks; autocovariance function; duty cycle; dynamic range; noise power spectral density; optical sensing devices; optical signal processing; output intensity; random phase fluctuations; sensitivity; source phase-induced noise; two-beam interferometers; unbalanced time domain multiplexed sensor networks; Dynamic range; Fluctuations; Interferometers; Optical devices; Optical interferometry; Optical noise; Optical signal processing; Phase noise; Stimulated emission; Time division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
