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Analysis of Rayleigh backscattering noise in micro-optical resonance gyroscope

  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

The theory of Rayleigh backscattering noise in the silicon substrate micro-optical resonance gyro (MORG) is described, and the static-and dynamic-state models of MORG are constructed. Characteristics of this noise in the resonator of SiO2 on Si substrate are formulized. The relationship between the Rayleigh backscattering noise and main signal intensity, and the effect on the main signal by the interference signal of the noise and reverse optical signal, are simulated by software algorithm. Effect of this noise on the performance of the resonator, such as the definition and the maximal sensitivity, is analyzed. The scheme to suppress the noise is proposed. Based on the analysis, the experimental system is set up. The results agree well with theoretic calculation.

Original languageEnglish
Pages (from-to)799-804
Number of pages6
JournalGuangxue Xuebao/Acta Optica Sinica
Volume29
Issue number3
DOIs
StatePublished - Mar 2009

Keywords

  • Integrated optics
  • Noise analysis
  • Rayleigh backscattering noise
  • Resonator
  • Silicon-substrate micro-optical resonance gyroscope (MORG)

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