Abstract
Dissipative Kerr solitons(DKS)have long been suffering from poor power conversion efficiency when driven by continuous-wave lasers.By deriving the critical coupling condition of a multimode nonlinear optics system in a generalized theoretical framework,two efficiency limitations of the conventional pump method of DKS are revealed:the effective coupling rate is too small and is also power-dependent.A general approach is provided to resolve this challenge by introducing two types of nonlinear cou-plers to couple the soliton cavity and CW input through nonlinear processes.The collective coupler opens multiple coupling channels and the self-adaptive coupler builds a power-independent effective external coupling rate to the DKS for approaching the generalized critical coupling condition,which promises near-unity power conversion efficiencies.For instance,a conversion efficiency exceeding 90％is predicted for aluminum nitride microrings with a nonlinear coupler utilizing second-harmonic gener-ation.The mechanism applies to various nonlinear processes,including Raman and Brillouin scattering,and thus paves the way for micro-solitons toward practical applications.
基金项目
国家自然科学基金(11934012)
国家自然科学基金(12293053)
国家自然科学基金(12374361)
国家自然科学基金(11904316)
国家自然科学基金(61690192)
国家自然科学基金(U21A20433)
国家自然科学基金(12104441)
国家自然科学基金(12293052)
国家自然科学基金(U21A6006)
安徽省自然科学基金(2008085QA34)
安徽省自然科学基金(2108085MA22)
Major Scientific Project of Zhejiang Laboratory(2020LC0AD01)
中央高校基本科研业务费专项()
University of Science and Technology of China(USTC)Research Funds of the Double First-Class Initiative()
Supercomputing System in the Supercomputing Center of USTC()
USTC Center for Micro and Nanoscale Research and Fabrication()
维普
万方数据