相干泵浦微腔光孤子基础与双光梳应用(特邀)  

Coherently pumped microcavity soliton physics and dual-comb applications(Invited)

作　　者：蔡兆雨 王子皓[1] 杨昌喜[1] 鲍成英 Cai Zhaoyu;Wang Zihao;Yang Changxi;Bao Chengying(State Key Laboratory of Precision Measurement Technology and Instruments,Department of Precision Instruments,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学精密仪器系精密测量技术与仪器国家重点实验室,北京100084

出　　处：《红外与激光工程》2022年第5期52-63,共12页Infrared and Laser Engineering

基　　金：国家自然科学基金(62175127);清华大学自主科研计划。

摘　　要：光学孤子是指一种通过非线性折射率势阱维持脉冲形状不变的光波,它广泛存在于光纤、飞秒激光器、参量振荡器等系统中。近年来,人们在相干泵浦下的高Q值微腔中也观测到了光孤子,这为研究光孤子性质提供了新的实验平台。又因为微腔光孤子在频域上对应高重频的光学频率梳,微腔光孤子的诞生也极大地推动了小型化光学频率梳的发展。微腔光孤子频率梳已经可以实现自参考锁定;这使得片上集成的光频合成器、光原子钟、波分复用光源、微腔光谱仪、微腔激光雷达等众多应用成为了可能。文中介绍了微腔光孤子的产生基础,特别是光孤子相互作用相关的研究,还讨论了基于微腔的双光梳测量在高速成像与中红外气体光谱分析上的应用。Optical solitons are wavepackets that can sustain the shape via a nonlinear refractive index potential well.They exist in a wide range of optical systems spanning optical fibers,fiber lasers and parametric oscillators.Recently,a new type optical solitons have been observed in coherently pumped high-Q microcavities.The observation of microcavity optical solitons provides a well-controlled experimental platform to study soliton physics.Microcavity optical solitons also endow an array of highly stable spectral lines in the frequency domain,which advance the miniaturization of frequency comb systems.These soliton microcombs have been selfreference stabilized and could enable many chip-based applications including optical frequency synthesizers,optical atomic clocks,data transmission,spectrometer and LiDAR in the near future.Here,the fundamental of microcavity optical solitons was introduced,with a special focus on soliton interaction dynamics.The microcavity dual-comb measurement based applications in fast imaging and mid-infrared gas spectroscopy were also discussed.

关 键 词：光孤子 相干泵浦 微腔光频梳 双光梳测量 

分 类 号：O439[机械工程—光学工程]