Title :
Re-entrant fibre optic rotation sensor with active ring resonator using semiconductor optical amplifier
Author :
Hu, Zhaoyang ; Zhang, Yanshen ; Tang, Quan´an
Author_Institution :
Dept. of Precision Instrum., Tsinghua Univ., Beijing, China
fDate :
12/9/1999 12:00:00 AM
Abstract :
A re-entrant fibre optic rotation sensor (RE-FORS) with an active ring resonator of length 20 m has been investigated theoretically and experimentally. A semiconductor optical amplifier (SOA) is inserted within the ring resonator to provide a few decibels of power gain for the light beams travelling in both directions. Experimental results have shown that at an internal power gain of 5.7 dB the scale factor is ~two times larger than at 2.1 dB
Keywords :
angular measurement; fibre optic sensors; optical resonators; semiconductor optical amplifiers; 20 m; 5.7 dB; active ring resonator; fibre optic gyroscopes; internal power gain; light beams; power gain; re-entrant fibre optic rotation sensor; ring resonator; scale factor; semiconductor optical amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991461
