Theory of the nonlinear Sagnac effect in a fiber-optic gyroscope

E. M. Wright, P. Meystre, W. J. Firth, A. E. Kaplan

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


The nonlinearly induced nonreciprocity of counterpropagating waves caused by an index grating in a Kerr medium can be used to nonlinearly enhance the Sagnac effect in a ring resonator. A specific discussion of this effect in the case of a fiber-optic rotation sensor is presented. Our theory, which holds for any value of the cavity finesse, includes transverse effects explicitly, but neglects stimulated scattering. Special emphasis is given to pure cavity effects which always occur simultaneously with the nonlinear Sagnac effect.

Original languageEnglish (US)
Pages (from-to)2857-2863
Number of pages7
JournalPhysical Review A
Issue number5
StatePublished - 1985

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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