Experimental demonstration of dissipative sensing in a self-interference microring resonator  

作　　者：SHUAI WAN RuI NIU HONG-LIANG REN CHANG-LING Zou GUANG-CAN Guo CHUN-HUA DONG 

机构地区：[1]Key Laboratory of Quantum Information,University of Science and Technology of China,Chinese Academy of Sciences,Hefei 230026,China [2]College of Information Engineering,Zhejiang University of Technology,Hangzhou 310023,China [3]Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China

出　　处：《Photonics Research》2018年第7期681-685,共5页光子学研究（英文版）

基　　金：National Key R&D Program of China(2016YFA0301300);National Natural Science Foundation of China(NSFC)(61575184,11722436);Natural Science Foundation of Zhejiang Province(LY16F050009);Open Fund of the State Key Laboratory of Advanced Optical Communication Systems and Networks,China(2016GZKF0JT004);Fundamental Research Funds for the Central Universities;Anhui Initiative in Quantum Information Technologies

摘　　要：The dissipative sensing based on a self-interference microring resonator composed of a microring resonator and a U-shaped feedback waveguide is demonstrated experimentally. Instead of a frequency shift induced by the phase shift of the waveguide or the microcavity, the dissipative sensing converts the phase shift to the effective external coupling rate, which leads to the change of linewidth of the optical resonance and the extinction ratio in the transmission spectrum. In our experiment, the power dissipated from a microheater on the feedback waveguide is detected by the dissipative sensing mechanism, and the sensitivity of our device can achieve0.22 d B/m W. This dissipative sensing mechanism provides another promising candidate for microcavity sensing applications.The dissipative sensing based on a self-interference microring resonator composed of a microring resonator and a U-shaped feedback waveguide is demonstrated experimentally. Instead of a frequency shift induced by the phase shift of the waveguide or the microcavity, the dissipative sensing converts the phase shift to the effective external coupling rate, which leads to the change of linewidth of the optical resonance and the extinction ratio in the transmission spectrum. In our experiment, the power dissipated from a microheater on the feedback waveguide is detected by the dissipative sensing mechanism, and the sensitivity of our device can achieve0.22 d B/m W. This dissipative sensing mechanism provides another promising candidate for microcavity sensing applications.

关 键 词：微环谐振器 波导结构 通讯技术 技术分析 

分 类 号：TN252[电子电信—物理电子学] TN92