Chip-scale spontaneous quasi-phase matched second harmonic generation in a micro-racetrack resonator

作     者：Tingge Yuan Jiangwei Wu Yi'an Liu Xiongshuo Yan Haowei Jiang Hao Li Zhaokang Liang Qiang Lin Yuping Chen Xianfeng Chen 

作者机构：State Key Laboratory of Advanced Optical Communication Systems and NetworksSchool of Physics and Astronomy.Shanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of Light Manipulations and ApplicationsShandong Normal UniversityJinan 250358China Department of Electrical and Computer EngineeringUniversity of RochesterNew York 14627USA 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2023年第66卷第8期

页      面：66-74页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0804[工学-仪器科学与技术] 0811[工学-控制科学与工程] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China(Grant No.2019YFB2203501) National Natural Science Foundation of China(Grant Nos.12134009,and 91950107) Shanghai Municipal Science and Technology Major Project(Grant No.2019SHZDZX01-ZX06) Shanghai Jiao Tong University(SJTU)(Grant No.21X010200828) 

主　　题：lithium niobate on insulator quasi-phase matching second harmonic generation 

摘      要：In this paper,we demonstrate efficient spontaneous quasi-phase matched(SQPM)second harmonic generation(SHG)in a microracetrack resonator on X-cut thin film lithium *** approach does not involve poling,but exploits the anisotropy of the crystals to allow the phase-matching condition to be fulfilled spontaneously as the TE-polarized light circulates in a specifically designed racetrack *** experiment,normalized on-chip conversion efficiencies of 1.01×10-4/W and 0.43×10-4/W are achieved by 37th-order and 111th-order SQPM,*** configurable SQPM will benefit the application of nonlinear frequency conversion and quantum source generation in chip-scale integrated photonics compatible with standard CMOS fabrication processes.