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Analysis of optimal frequency bias of frequency-lock in passive ring resonator optic gyro

  • Junjie Wang*
  • , Lishuang Feng
  • , Yinzhou Zhi
  • *Corresponding author for this work
  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The frequency-lock (FL) accuracy of a passive ring resonator optic gyro (PROG), which is closely related to the frequency bias, determines the ultimate measurement precision of the gyro system; therefore it is particularly important to choose a proper frequency bias for the PROG to achieve excellent performance. The best performance of the PROG comes from the optimal signal-noise ratio (SNR), rather than the highest sensitivity. The relations among the SNR affected by the photon shot noise of the photodetector, sensitivity and the frequency bias of the PROG are analyzed in detail for both transmission-type and reflection-type PROGs under Lorentz function approximation in this paper, and the optimal FL frequency bias ranges are discussed. This work provides explicit theoretical guidance for the systematic optimization of the PROG.

Original languageEnglish
Title of host publicationOptical Sensing and Detection III
PublisherSPIE
ISBN (Print)9781628410891
DOIs
StatePublished - 2014
EventOptical Sensing and Detection III - Brussels, Belgium
Duration: 14 Apr 201417 Apr 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9141
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Sensing and Detection III
Country/TerritoryBelgium
CityBrussels
Period14/04/1417/04/14

Keywords

  • Frequency bias
  • Frequency-lock
  • Passive ring resonator
  • Resonator optic gyro

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