Second-harmonic-assisted four-wave mixing in chip-based microresonator frequency comb generation  

作　　者：Xiaoxiao Xue François Leo Yi Xuan Jose A Jaramillo-Villegas Pei-Hsun Wang Daniel E Leaird Miro Erkintalo Minghao Qi Andrew M Weiner 

机构地区：[1]Department of Electronic Engineering,Tsinghua University,Beijing 100084,China [2]School of Electrical and Computer Engineering,Purdue University,465 Northwestern Avenue,West Lafayette,IN 47907-2035,USA [3]The Dodd-Walls Centre for Photonic and Quantum Technologies,Department of Physics,The University of Auckland,Auckland 1142,New Zealand [4]OPERA-photonics,Universitélibre de Bruxelles(U.L.B.),50 Avenue F.D.Roosevelt,CP 194/5,B-1050 Bruxelles,Belgium [5]Birck Nanotechnology Center,Purdue University,1205 West State Street,West Lafayette,IN 47907,USA [6]Facultad de Ingenierías,Universidad Tecnológica de Pereira,Pereira RIS 660003,Colombia

出　　处：《Light(Science & Applications)》2016年第1期79-87,共9页光（科学与应用)（英文版）

基　　金：supported in part by the National Science Foundation under grant ECCS-1509578;the Air Force Office of Scientific Research under grant FA9550-15-1-0211;the DARPA PULSE program through grant W31P40-13-1-0018 from AMRDEC;funding from the National Natural Science Foundation of China under grant 6169190011/12,61420106003;the Beijing Natural Science Foundation under grant 4172029;funding from the Marsden Fund and the Rutherford Discovery Fellowships of the Royal Society of New Zealand.

摘　　要：Simultaneous Kerr comb formation and second-harmonic generation with on-chip microresonators can greatly facilitate comb self-referencing for optical clocks and frequency metrology.Moreover,the presence of both second-and third-order nonlinearities results in complex cavity dynamics that is of high scientific interest but is still far from being well-understood.Here,we demonstrate that the interaction between the fundamental and the second-harmonic waves can provide an entirely new way of phase matching for four-wave mixing in optical microresonators,enabling the generation of optical frequency combs in the normal dispersion regime under conditions where comb creation is ordinarily prohibited.We derive new coupled time-domain mean-field equations and obtain simulation results showing good qualitative agreement with our experimental observations.Our findings provide a novel way of overcoming the dispersion limit for simultaneous Kerr comb formation and second-harmonic generation,which might prove to be especially important in the near-visible to visible range where several atomic transitions commonly used for the stabilization of optical clocks are located and where the large normal material dispersion is likely to dominate.

关 键 词：four-wave mixing Kerr frequency comb MICRORESONATOR second-harmonic generation 

分 类 号：O17[理学—数学]