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A resonant fiber optic gyroscope (RFOG) using a reciprocal modulation and double demodulation technique based on a single laser source is proposed and demonstrated. The effect of the residual amplitude… Click to show full abstract
A resonant fiber optic gyroscope (RFOG) using a reciprocal modulation and double demodulation technique based on a single laser source is proposed and demonstrated. The effect of the residual amplitude modulation of the phase modulator is well suppressed thanks to the reciprocal modulation and demodulation. On this basis, the backscattering noise is also eliminated by the double demodulation process. The long-term bias stability of the RFOG is successfully improved to 0.2°/h for a test time of 45 hours.
Keywords:
demodulation;
fiber optic;
double demodulation;
modulation;
reciprocal modulation;
resonant fiber
Journal Title: Optics express
Year Published: 2022
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Journal Title: Optics express
Year Published: 2022
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!