Bichromatically pumped artificial cnoidal wave breathers in optical microresonators  

作　　者：YIRAN GAO JIAN DAI ZHONGHAN WU ANNI LIU TIAN ZHANG WEI SUN JUNQIU LIU KUN XU 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China [3]School of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China [4]International Quantum Academy,Shenzhen 518048,China [5]Hefei National Laboratory,University of Science and Technology of China,Hefei 230026,China

出　　处：《Photonics Research》2024年第7期1464-1477,共14页光子学研究（英文版）

基　　金：Fundamental Research Funds for the Provincial Universities of Zhejiang (GK239909299001-026);Natural Science Foundation of Zhejiang Province (LQ24F050016);National Natural Science Foundation of China (61971065,62301195, 12261131503);Innovation Program for Quantum Science and Technology (2023ZD0301500);Shenzhen-Hong Kong Cooperation Zone for Technology and Innovation(HZQBKCZYB2020050)。

摘　　要：Breathers are localized structures that undergo a periodic oscillation in their duration and amplitude. Optical microresonators, benefiting from their high-quality factor, provide an ideal test bench for studying breathing phenomena. In a monochromatically pumped microresonator system, intrinsic breathing instabilities are widely observed in the form of temporal dissipative Kerr solitons which only exist in the effectively red-detuned regime.Here, we demonstrate a novel bichromatic pumping scheme to create compulsive breathing microcombs via respectively distributing two pump lasers at the effectively blue-and red-detuned sides of a single resonance.We experimentally discover the artificial cnoidal wave breathers and molecular crystal-like breathers in a photonic chip-based silicon nitride microresonator and theoretically describe their intriguing temporal dynamics based on the bichromatic pumping Lugiato–Lefever equation. In particular, the corresponding breathing microcombs exhibit diverse comb line spacing ranging from 2 to 17 times the free spectral range of the microresonator.Our discovery not only provides a simple yet robust method to harness microcombs with reconfigurable comb line spacing but also reveals a new class of breathing waves in driven dissipative nonlinear systems.

关 键 词：PUMPED RESONATOR PUMPING 

分 类 号：TN256[电子电信—物理电子学]