كليو - حافة المحيط الهادئ 2017 نور العشيقين بنتي داوود

Ultra-low Loss Silica Waveguide Ring Resonators for Resonant Micro-Optic Gyroscopes, Hulian Ma, Jianjie Zhang, Hanzhao Li, and Zhonghe Jin, Zhejiang University, Hangzhou, China.

Resonant micro-optic gyroscope1) (RMOG) with a waveguide-type ring resonator (WRR) has been identified for new optical gyros that can achieved size, cost and power reduction. The most critical element of RMOG is an ultra-low loss waveguide-type ring resonator (WRR) with centimetre-scale size. The presenter explained on the fabrication and measurements on both types of WRR. The configuration of WRR consists of transmissive WRR and reflective WRR. WRR was fabricated on silicon wafer using plasma-enhanced chemical vapor deposition. The finesse and resonant depth of reflective silica WRR are 196.7 and 98%, respectively. For the transmissive silica WRR, the finesse and the total loss are 128 and 0.113dB, respectively. The polarization error and polarization extinction ratio is increased by pigtailed the silica WRR with single polarization fiber. With high finesse and polarization possible to gain value of bias stability of 4m̊/s in one-hour timeframe. Also, from the rotation measurement showed that it can exceed the earth rotation rate.

1)Gyroscope is a device consist of a wheel or disc mounted so that it can spin rapidly about an axis which is itself free to alter in direction. The orientation of the axis is not effected by tilting of the mounting, so gyroscopes can be used to provide stability or maintain a reference direction.