Abstract

This paper is concerned with the angular random walk (ARW) limited by Rayleigh backscattering in the resonator fiber optic gyro (RFOG) with a light source of arbitrary temporal coherence. First, a model of Rayleigh backscattering noise in RFOGs is established to predict the fluctuation characteristics of backscattered intensity and interference intensity. Next, the formula for the ARW limited by Rayleigh backscattering is derived, and the requirement of carrier suppression level is calculated to make sure the ARW is limited by the detector’s shot noise rather than Rayleigh scattering noise. Finally, the influences of the cavity length, the linewidth, and the finesse on the ARW limited by Rayleigh backscattering are investigated. The results predict that the influence of the cavity length L and the laser linewidth ΔυL on the ARW is dominantly related to the factor e2πΔυLneL/c, and under the finesse 88, the best ARW is obtained when there is a relation L·ΔυL4×105  m·Hz.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Reduction of angle random walk by in-phase triangular phase modulation technique for resonator integrated optic gyro

Junjie Wang, Lishuang Feng, Qiwei Wang, Xiao Wang, and Hongchen Jiao
Opt. Express 24(5) 5463-5468 (2016)

Effect of Rayleigh backscattering in an optical passive ring-resonator gyro

K. Iwatsuki, K. Hotate, and M. Higashiguchi
Appl. Opt. 23(21) 3916-3924 (1984)

Resonator fiber optic gyro employing a semiconductor laser

Zhonghe Jin, Xuhui Yu, and Huilian Ma
Appl. Opt. 51(15) 2856-2864 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (27)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription