Dong Xiao-wei,Liu Wen-kai.Ultra-small microring resonator based on sub-micrometer fiber[J].Optoelectronics Letters,2012,8(4):253-255 Ultra-small microring resonator based on sub-micrometer fiber Author Name Affiliation Dong Xiao-wei  College of Information Engineering, North China University of Technology, Beijing 100144, China  Liu Wen-kai  College of Information Engineering, North China University of Technology, Beijing 100144, China  Abstract:       The transfer function of the microring resonator is deduced, and the effects of the normalized loss, coupling coefficient and surrounding media on the resonance performance are investigated thoroughly. Utilizing the improved fused tapering technique and ingenious self-coiling coupling method, a high-quality microring resonator (radius of about 500 m) with larger extinction ratio (>10 dB) and sharper resonance is designed and fabricated by a segment of continuous sub-micrometer fiber. The microring resonator constructed in this way demonstrates extremely small connection loss with communication fiber in contrast to the planar waveguide technology. Hits: 4083 Download times: 546 This work has been supported by the National Natural Science Foundation of China (Nos.61007007 and 11002018). View Full Text    Download reader