集成微腔光梳色散调控技术研究进展(特邀)  

Progress in Dispersion Engineering for Integrated Microcombs(Invited)

作　　者：沈碧涛 常华墐 舒浩文 王兴军[1,2] Shen Bitao;Chang Huajin;Shu Haowen;Wang Xingjun(State Key Laboratory of Advanced Optical Communication Systems and Networks,School of Electronics,Peking University,Beijing 100871,China;Nano-Optoelectronics Frontier Center of Ministry of Education,Peking University,Beijing 100871,China)

机构地区：[1]北京大学电子学院区域光纤通信网与新型光通信系统国家重点实验室,北京100871 [2]北京大学教育部纳光电子前沿科学中心,北京100871

出　　处：《激光与光电子学进展》2024年第19期1-13,共13页Laser & Optoelectronics Progress

基　　金：科技部重点研发计划(2021YFB2800400);国家自然科学基金(62235002、62327811、62322501、12204021);北京市科学技术委员会;中关村科技园区管理委员会(Z221100006722003);北京市自然科学基金资助项目(Z210004)。

摘　　要：集成微腔光梳技术,利用集成微腔内的光学非线性作用可在连续光泵浦下产生周期性光脉冲,其在频域上表现为等间隔的光学频率成分。与传统光梳相比,集成微腔光梳具有小型化、功耗低、重复频率大等优势,其独特的时频特性在推动传统光梳向片上化演进的同时,也可与波分复用技术结合,推动了片上集成并行化、大容量的信息传输、处理与感知。在微腔光梳的产生过程中,微腔的色散,即不同波长的光在腔内的群速度差异特性,具有决定性作用。面对不同的应用需求,不同的腔体色散设计至关重要。本文首先介绍了色散对光梳状态影响的研究进展,然后介绍了近年来集成微腔色散设计方面取得的进展,最后对当前的技术与问题进行总结,并对未来的发展进行展望。Integrated microcavity comb technology exploits optical nonlinearity within integrated microcavities to generate periodic optical pulses under continuous optical pumping.These pulses exhibit equidistant optical-frequency components in the frequency domain.Compared to traditional optical combs,integrated microcavity optical combs offer advantages such as miniaturization,low power consumption,and high repetition rates.Their unique time-frequency characteristics not only facilitate the evolution of traditional optical combs toward on-chip integration but also enable integration with wavelength division multiplexing technology to advance on-chip parallelization,high-capacity information transmission,processing,and sensing.In the generation of microcavity combs,the dispersion of microcavities—i.e.,the difference in the group velocity of light at different wavelengths within the cavity—is crucial.Different application requirements necessitate specific cavity dispersion designs.This article reviews the research progress on how dispersion influences optical comb states,discusses recent advancements in integrated microcavity dispersion design,and summarizes current technologies and challenges while looking forward to future developments.

关 键 词：集成光学 光频梳 集成微腔光梳 色散 

分 类 号：O436[机械工程—光学工程]