首页|Breaking the efficiency limitations of dissipative Kerr solitons using nonlinear couplers

Breaking the efficiency limitations of dissipative Kerr solitons using nonlinear couplers

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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.

Kerr frequency combconversion efficiencynonlinear coupler

Ming Li、Xiao-Xiao Xue、Yan-Lei Zhang、Xin-Biao Xu、Chun-Hua Dong、Guang-Can Guo、Chang-Ling Zou

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CAS Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei 230026,China

CAS Center for Excellence in Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China

Department of Electronic Engineering,Beijing National Research Center for Information Science and Technology,Tsinghua University,Beijing 100084,China

国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金安徽省自然科学基金安徽省自然科学基金Major Scientific Project of Zhejiang Laboratory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 InitiativeSupercomputing System in the Supercomputing Center of USTCUSTC Center for Micro and Nanoscale Research and Fabrication

1193401212293053123743611190431661690192U21A204331210444112293052U21A60062008085QA342108085MA222020LC0AD01

2024

10.1007/s11433-023-2288-y

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子：0.91
ISSN：1674-7348
年,卷(期)：2024.67(3)
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