Y-type Branch Waveguide Used in Resonant Micro-Optic Gyro
Resonant Micro-Optic Gyro (RMOG) is a kind of optical sensors measuring angular velocity via Sagnac Effect,which yields different central resonant frequency between the clockwise (CW) and counterclockwise (CCW) light path of a ring-resonator when rotating.In this paper,Y-type branch waveguide is put forward to replace K-type coupler in RMOG to reduce the influence of splitting ratio asymmetry due to fabrication errors and temperature drift.Y-type branch waveguide based on silicon-on-silica is designed and analyzed.Simulation results show that Y-type branch waveguide performs better fabrication tolerance than K-type coupler,which reduces the nonlinear Kerr-Effect induced noise excited by power nonuniformity of the counter-propagating beams,therefore the detection sensitivity of RMOG can be improved.
Gyro Y-type branch Waveguide Kerr Effect
Wang Junjie Feng Lishuang Wang Wei Liu Huilan Li Ruya
Science and Technology on Inertial Laboratory, Beihang University, Beijing, China;Key Laboratory of Micro-Nano Measurement-Manipulation and Physics(Ministry of Education),Beihang University, Beijing, China
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-5
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）