Direct-Coupled Large-Diameter Silica on Silicon Waveguide Ring Resonator Used in Microoptic Gyro

作者：Guo Lijun^*; Shi Bangren; Zhao Meng; Chen Chen; Zhang Rong

来源：International Journal of Optomechatronics, 2011, 5(1): 30-50.

DOI：10.1080/15599612.2011.559684

• BPM
• microoptic gyro
• ring resonator
• silica on silicon waveguide

A kind of direct-coupled large-diameter silica on silicon waveguide ring resonator used in microoptic gyro with 4cm diameter was presented. An optical and electromechanical test platform was designed to investigate the performance of the ring resonator. The resonance curve, demodulation curve and three relative important resonator parameters were obtained. The free spectral range of the resonator, the full width at half maximum of the resonance curve and the finesse of the resonator, are 3GHz, 73MHz and 41, respectively. Open-loop experiments of resonator are set up using the acousto-optic frequency modulation spectroscopy technique. The output of MOG is investigated by the platform rotate and equivalent gyro rotate. The slope of the linear fit is about 3.154mV/(degrees/s) based on the -5050 degrees/s rotating rates and 0.330mV/(degrees/s) based on the -900900KHz equivalent frequency shift, respectively. The demodulation curve shows a strongly nonlinear and the linear approximation has a great limitation.

• 出版日期2011
• 单位长春理工大学