Parametric down-conversion photon-pair source on a nanophotonic chip

作     者：Xiang Guo Chang-ling Zou Carsten Schuck Hojoong Jung Risheng Cheng Hong X Tang 

作者机构：Department of Electrical EngineeringYale UniversityNew HavenCT 06511USA 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2016年第5卷第1期

页      面：96-103页

核心收录：

学科分类：0808[工学-电气工程] 080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：support from a Packard Fellowship in Science and Engineering support from the Deutsche Forschungsgemeinschaft(SCHU 2871/2-1) supported by Yale SEAS cleanroom and Yale Institute for Nanoscience and Quantum Engineering 

主　　题：nanofabrication quantum photonic chip second-order nonlinear material single-photon source 

摘      要：Quantum-photonic chips,which integrate quantum light sources alongside active and passive optical elements,as well as singlephoton detectors,show great potential for photonic quantum information processing and quantum *** semiconductor nanofabrication processes allow for scaling such photonic integrated circuits to on-chip networks of increasing ***-order nonlinear materials are the method of choice for generating photonic quantum states in the overwhelming majority of linear optic experiments using bulk components,but integration with waveguide circuitry on a nanophotonic chip proved to be ***,we demonstrate such an on-chip parametric down-conversion source of photon pairs based on second-order nonlinearity in an aluminum-nitride microring *** show the potential of our source for quantum information processing by measuring the high visibility anti-bunching of heralded single photons with nearly ideal state *** down-conversion source yields measured coincidence rates of 80 Hz,which implies MHz generation rates of correlated photon *** noise performance is demonstrated by measuring high coincidence-to-accidental *** generated photon pairs are spectrally far separated from the pump field,providing great potential for realizing sufficient on-chip filtering and monolithic integration of quantum light sources,waveguide circuits and single-photon detectors.