红外与毫米波学报2024，Vol.43Issue(4)：442-449,8.DOI:10.11972/j.issn.1001-9014.2024.04.002
基于氮化硅微腔的2 μm波段孤子光梳研究
Characterization of 2 μm band soliton optical comb based on silicon nitride microcavity
摘要
Abstract
The optical frequency comb(OFC)generation of 2 μm silicon nitride microcavity is investigated.Dispersion modulation of silicon nitride waveguides is carried out by geometrical design.Appropriate bus waveguide dimensions are selected,and the thermal refraction noise of silicon nitride microcavities at different modulation frequencies is discussed by the thermal absorption theory.The nonlinear Schrödinger equation is used as the basic model to study the evolution of the cavity under different dispersion effects.The numerical results show that silicon nitride is able to observe the hysteret-ic state transition of the system,i.e.,the relaxation oscillation phenomenon during the transition of the system to the sta-ble domain,more clearly in the 2 μm band.At the same time,the cavity is able to transition to the steady state soliton faster under the action of higher-order dispersion,which provides a scheme to study the respiratory soliton.关键词
光学频率梳/色散调控/热折射噪声/呼吸孤子Key words
optical frequency combs/dispersion modulation/thermorefractive noise/breathe soliton分类
信息技术与安全科学引用本文复制引用
程如敏,孙嘉浩,吴加贵,郭登极,许佼,杨俊波,闫培光..基于氮化硅微腔的2 μm波段孤子光梳研究[J].红外与毫米波学报,2024,43(4):442-449,8.基金项目
国家自然科学基金(62205219,52103304),深圳市科技计划项目(JCYJ20190808160205460,JCYJ20220818095604010) Supported by the National Natural Science Foundation of China(62205219,52103304),Shenzhen Science and Technology Pro-gram(JCYJ20190808160205460,JCYJ20220818095604010) （62205219,52103304）
