Title :
Algorithm for large-phase-modulation measurements (fibre optic interferometer systems)
Author_Institution :
Dept. of Electron. & Electr., Univ. Coll. London, UK
Abstract :
A new algorithm is presented suitable for measurement of large-phase-modulation magnitudes using data from a spectrum analyser. Large-phase-modulation measurements were carried out on piezoelectric-cylinder fibre-optic phase modulators revealing nonlinearity and hysteresis in the response of the device.
Keywords :
fibre optic sensors; light interferometry; measurement theory; optical modulation; optical variables measurement; phase modulation; fibre-optic phase modulators; hysteresis; interferometer systems; large-phase-modulation measurements; nonlinearity; piezoelectric-cylinder; response; spectrum analyses data;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900077
