Polarization decoherence differential frequency-modulated continuous-wave gyroscope.
OPTICS LETTERS(2014)
摘要
A polarization decoherence differential frequency-modulated continuous-wave (FMCW) gyroscope is presented. The impact of coherent polarization crosstalk noise on the differential FMCW gyro is analyzed. In order to suppress coherent polarization crosstalk noise, a novel method was proposed to produce two incoherent orthogonal polarization narrow band beams from laser diode. In this way, the random drift has been reduced about one order.
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关键词
gyroscopes
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