Abstract

The concept of a magneto-optic current sensor that employs a fiber-optic Fabry–Perot resonator shaped into a single-turn helix is presented. The helical shape permits construction of a compact device that has the required polarization properties. Compared with a single-pass sensor, a large increase in sensitivity is obtained as a result of the finesse of the resonator. Experimental results confirm the theory and show that for a finesse of F = 6 the sensitivity is four times larger than for a single-pass sensor.

© 1989 Optical Society of America

Polarimetric fiber optical sensor with high sensitivity using a Fabry-Perot structure

François Maystre and Rene Dandliker
Appl. Opt. 28(11) 1995-2000 (1989)

Optical-fiber Fabry–Perot embedded sensor

C. E. Lee, H. F. Taylor, A. M. Markus, and E. Udd
Opt. Lett. 14(21) 1225-1227 (1989)

Gross talk in a fiber-optic Fabry–Perot sensor array with ring reflectors

A. D. Kersey, K. L. Dorsey, and A. Dandridge
Opt. Lett. 14(1) 93-95 (1989)

Potential optical gain with two crossed Fabry–Perot resonators: the influence of absorption

David A. Holm and Barbara A. Capron
Opt. Lett. 14(12) 601-603 (1989)

Polarization multiplexing applied to a fiber current sensor

Z. B. Ren and Ph. Robert
Opt. Lett. 14(21) 1228-1230 (1989)