Mach-Zehnder interferometer sensors fabricated with conventional nonpolarization-preserving fibers are subject to polarization fading caused by temperature variations and minor positional changes in the sensor. We calculate the probability of a given decrease in sensitivity and in signal-to-noise ratio due to fading assuming the polarization of the light in the signal and reference legs is uncorrelated and drifts randomly. The resultant reduction of the signal-to-noise ratio may exceed 10 dB 10 percent of the time and exceed 20 dB more than 2 percent of the time.
Polarization fading in fiber interferometric sensors
Polarisationsfading bei interferometrischen Lichtleitersensoren
IEEE Journal of Quantum Electronics ; 18 , 10 ; 1644-1647
1982
4 Seiten, 2 Bilder, 12 Quellen
Article (Journal)
English
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