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Periodic rotation noise induced by the crosstalk between two beat-frequency signals in multi-oscillator ring laser gyros
- Source :
- Journal of Optics. 16:125410
- Publication Year :
- 2014
- Publisher :
- IOP Publishing, 2014.
-
Abstract
- Periodic rotation noise in the outputs of multi-oscillator ring laser gyros (MRLGs) is investigated in this paper for the first time. It is proved theoretically and experimentally that noise is induced by the crosstalk between two beat-frequency signals, which are combined from the left and right circularly polarized counter-propagating beams in MRLGs. Theoretical analysis and experimental results also indicate that the fundamental frequency of this noise is equal to the frequency difference between the two beat-frequency signals and the amplitude of the fundamental component is proportional to the crosstalk ratio between the two beat-frequency signals. Further, the amplitude of the nth-order component is proportional to the nth power of the crosstalk ratio.
Details
- ISSN :
- 20408986 and 20408978
- Volume :
- 16
- Database :
- OpenAIRE
- Journal :
- Journal of Optics
- Accession number :
- edsair.doi...........793ec0c4822e2562b695783410944e23