Abstract

The output signal from an open-loop sinusoidally modulated fiber gyro, I_out, can be represented as ${\text{I}}_{\text{out}}=\frac{{\text{I}}_0}{2}\left\{1+\cos \left[{\varphi }_{\text{R}}+{\varphi }_{\text{m}}\cos \left(\text{ωt+θ}\right)\right]\right\}$ where ω is the bias modulation frequency, ϕ_R is the rotation induced non-reciprocal phase shift, ϕ_m is the modulation depth, and θ is a phase uncertainty between the modulation drive signal and the output signal.

© 1997 Optical Society of America