Closed-loop experiment of resonator integrated optic gyro with triangular wave phase modulation

Yichuang Tang; Huilan Liu; Yinzhou Zhi; Lishuang Feng; Junjie Wang

doi:10.1117/12.2072355

24 October 2014 Closed-loop experiment of resonator integrated optic gyro with triangular wave phase modulation

Yichuang Tang, Huilan Liu, Yinzhou Zhi, Lishuang Feng, Junjie Wang

Proceedings Volume 9270, Optoelectronic Devices and Integration V; 92700P (2014) https://doi.org/10.1117/12.2072355
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

A closed-loop resonator integrated optic gyro (RIOG) scheme based on triangular wave phase modulation is proposed. Only one integrated optic modulator (IOM) is employed. Triangular wave is applied on the IOM to modulate the passing light wave, and the feedback serrodyne wave is superimposed upon the triangular wave to compensate the resonant frequency-difference. The experimental setup is established and the related measurements are performed. The results show that the proposed scheme can realize the closed-loop RIOG employing an IOM, which has the advantage of miniature size. A bias stability of 0.39 deg/s (10 s integration time) over 1 hour is achieved. Moreover, good linearity and large dynamic range are also experimental demonstrated.

Citation Download Citation

Yichuang Tang, Huilan Liu, Yinzhou Zhi, Lishuang Feng, and Junjie Wang "Closed-loop experiment of resonator integrated optic gyro with triangular wave phase modulation", Proc. SPIE 9270, Optoelectronic Devices and Integration V, 92700P (24 October 2014); https://doi.org/10.1117/12.2072355

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KEYWORDS

Integrated optics

Gyroscopes

Modulation

Phase modulation

Resonators

Modulators

Signal detection

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