Title :
Reentrant Sagnac fiber gyroscope with a recirculating delay line using an erbium-doped fiber amplifier
Author :
Chen, D.N. ; Motoshima, K. ; Downs, M.M. ; Desurvire, E.
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
fDate :
7/1/1992 12:00:00 AM
Abstract :
A fiber-optic reentrant gyroscope based on the principle of Sagnac interferometry incorporating a recirculating delay line is demonstrated. Loss compensation in the delay line is achieved through an erbium-doped fiber amplifier bidirectionally pumped at 1.48 mu m. A theoretical analysis shows the potential device limits for very low rotation rates detection. Nonreciprocal effects induced by the fiber amplifier and Kerr nonlinearities are also discussed.<>
Keywords :
delay lines; erbium; fibre lasers; fibre optic sensors; gyroscopes; light interferometers; optical Kerr effect; 1.48 micron; Er doped fibre amplifier; Kerr nonlinearities; Sagnac interferometry; bidirectional pumping; fiber-optic reentrant gyroscope; loss compensation; nonreciprocal effects; recirculating delay line; very low rotation rates detection; Delay lines; Gyroscopes; Optical fiber amplifiers; Optical fiber devices; Optical noise; Optical pumping; Optical sensors; Sagnac interferometers; Signal to noise ratio; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
