Resonant characteristics of fiber ring resonator with phase modulation spectroscopy

Li Xiaofeng; Zheng Yongqiu; An Panlong; Zhang Jianhui; Chen Hao; Xue Chenyang; Liu Jun; Yan Shubin

Phase modulation spectroscopy is an important method of signal detection in resonator optic gyro. By the use of expansion of Bessel function and optical field overlapping method, the transmission properties of optical fiber ring resonator was analyzed. A testing system of resonant properties was set up. Based on the LiNbO3 phase modulation, the experiments to research resonant characteristics and demodulation curve features was carried out under different frequencies and voltages of modulation, and the experimental result was analyzed, then the relation of frequency and voltage of modulation and resonant and demodulation signal of fiber ring resonator was obtained. The splitting phenomenon of resonance dips during the experiment was measured and analyzed. By fitting the data, the relation of critical frequency and voltage of modulation of splitting phenomenon of resonance dips occurs was obtained.

1. Key Laboratory of Instrumentation Science and Dynamic Measurement Ministry of Education,North University of China,Taiyuan 030051,China;

2. National Key Laboratory for Electronic Measurement Technology,North University of China,Taiyuan 030051,China

Received Date: 2014-02-05

Rev Recd Date: 2014-03-10

Publish Date: 2014-10-25

Key words:

Abstract: Phase modulation spectroscopy is an important method of signal detection in resonator optic gyro. By the use of expansion of Bessel function and optical field overlapping method, the transmission properties of optical fiber ring resonator was analyzed. A testing system of resonant properties was set up. Based on the LiNbO3 phase modulation, the experiments to research resonant characteristics and demodulation curve features was carried out under different frequencies and voltages of modulation, and the experimental result was analyzed, then the relation of frequency and voltage of modulation and resonant and demodulation signal of fiber ring resonator was obtained. The splitting phenomenon of resonance dips during the experiment was measured and analyzed. By fitting the data, the relation of critical frequency and voltage of modulation of splitting phenomenon of resonance dips occurs was obtained.

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Reference (21)

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Resonant characteristics of fiber ring resonator with phase modulation spectroscopy

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