There appear to be limitations in the operation of optical-fiber Sagnac gyro rotation sensors that have imposed a minimum measurable rotation rate that is much higher than that caused by quantum noise. We show that one source of limitation, namely, the superposition of a nonreciprocal pair of waves generated by backward scattering from the incident waves, can result in significant error but can be mitigated by appropriate system design and signal modulation.
© 1980 Optical Society of America
Original Manuscript: July 16, 1980
Published: November 1, 1980
C. C. Cutler, S. A. Newton, and H. J. Shaw, "Limitation of rotation sensing by scattering," Opt. Lett. 5, 488-490 (1980)