The resonator optic gyro (ROG), which utilizes a resonance frequency change due to the Sagnac effect, is a promising candidate for the next generation inertial rotation sensor. In this paper, we first analyzed the signal detection theory and made the demodulation curve modeling. Second, the ROG demodulation test system is set up using the laser frequency modulation spectroscopy technique. The resonance curve of the resonator is detected by the photodiode (PD) and then demodulated by the LIA. By testing at λ=1550nm, and the free spectral range (FSR), the full width at half maximum (FWHM), the depth and the finesse of resonance are 2191.41MHz, 65.55MHz, 0.9 and 33.43 respectively. Calculated from the demodulation signal, the dynamic range of the gyro is from +2.04×103rad/s to -2.04×103rad/s. The slope K1 of the linear part in the demodulation signal is estimated to be 0.8×10-7V/Hz. A basic agreement between experimental results and theoretical calculated values was achieved.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The analysis of demodulation characteristic on the resonant optical gyro using frequency modulation technique


    Beteiligte:
    Ning, Liang (Autor:in) / Guo, Lijun (Autor:in) / Fang, Gang (Autor:in) / Liu, Cihang (Autor:in)

    Kongress:

    Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I ; 2014 ; China,China


    Erschienen in:

    Erscheinungsdatum :

    04.03.2015





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Resonant optical gyro: Monolithic vs. hybrid integration

    Ciminelli, C. / Dell'Olio, F. / Armenise, M.N. | IEEE | 2013


    Quasi-Optimal Demodulation of Pulse-Frequency Modulation Systems

    Hetrakul, Priti / Moore, J. B. | IEEE | 1974


    Resonator Fiber Optic Gyro Using Digital Serrodyne Modulation

    Hotate, K. / Harumoto, M. | British Library Online Contents | 1997


    Cluster Sampling Technique for Gyro Noise Analysis

    Tehrani, M. M. | British Library Conference Proceedings | 1995