Repetition rate locked single-soliton microcomb generation via rapid frequency sweep and sideband thermal compensation  

作　　者：RUNLIN MIAO CHENXI ZHANG XIN ZHENG XIANG’AI CHENG KE YIN TIAN JIANG 

机构地区：[1]College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China [2]State Key Laboratory of Pulsed Power Laser Technology,Changsha 410073,China [3]Hunan Provincial Key Laboratory of High Energy Laser Technology,Changsha 410073,China [4]Defense Innovation Institute,Academy of Military Sciences PLA China,Beijing 100071,China [5]Beijing Institute for Advanced Study,National University of Defense Technology,Beijing 100000,China

出　　处：《Photonics Research》2022年第8期1859-1867,共9页光子学研究（英文版）

基　　金：National Key Research and Development Program of China(2020YFB2205804);National Natural Science Foundation of China(62075240);Science Fund for Distinguished Young Scholars of Hunan Province(2020JJ2036);Postgraduate Scientific Research Innovation Project of Hunan Province(CX20210004)。

摘　　要：Dissipative Kerr solitons(DKSs)with mode-locked pulse trains in high-Q optical microresonators possess lownoise and broadband parallelized comb lines,having already found plentiful cutting-edge applications.However,thermal bistability and thermal noise caused by the high microresonator power and large temperature exchange between microresonator and the environment would prevent soliton microcomb formation and deteriorate the phase and frequency noise.Here,a novel method that combines rapid frequency sweep with optical sideband thermal compensation is presented,providing a simple and reliable way to get into the single-soliton state.Meanwhile,it is shown that the phase and frequency noises of the generated soliton are greatly reduced.Moreover,by closing the locking loop,an in-loop repetition rate fractional instability of 5.5×10^(-15)at 1 s integration time and a triangular linear repetition rate sweep with 2.5 MHz could be realized.This demonstration provides a means for the generation,locking,and tuning of a soliton microcomb,paving the way for the application of single-soliton microcombs in low-phase-noise microwave generation and laser ranging.

关 键 词：RESONATOR tuning SOLITON 

分 类 号：TN751.2[电子电信—电路与系统] TN248