Abstract

It is shown that environmental magnetic fields may cause a considerable error for the detected rotation rate even though the line integral of the magnetic field along the fiber vanishes. Experimentally, it has been shown that the earth’s magnetic field yields a bias uncertainty of about 10°/h, which can be reduced by at least 1 order of magnitude if the fiber coil is protected against environmental magnetic fields.

© 1982 Optical Society of America

Drift of an optical fiber gyroscope caused by the Faraday effect: influence of the earth's magnetic field

Kazuo Hotate and Kunio Tabe
Appl. Opt. 25(7) 1086-1092 (1986)

Faraday rotation in coiled, monomode optical fibers: isolators, filters, and magnetic sensors

G. W. Day, D. N. Payne, A. J. Barlow, and J. J. Ramskov-Hansen
Opt. Lett. 7(5) 238-240 (1982)

Passive fiber optic gyroscope

Gert F. Trommer, Hans Poisel, Wolfhardt Buhler, Engelbert Hartl, and Reinhard Muller
Appl. Opt. 29(36) 5360-5365 (1990)

High-sensitivity mode-locked fiber laser gyroscope

Bong Wan Lee, Ho Jin Jeong, and Byoung Yoon Kim
Opt. Lett. 22(2) 129-131 (1997)

All-fiber gyroscope with inertial-navigation short-term sensitivity

H. C. Lefevre, R. A. Bergh, and H. J. Shaw
Opt. Lett. 7(9) 454-456 (1982)