Transient replica symmetry breaking in Brillouin random fiber lasers  

作　　者：Liang Zhang Jilin Zhang Fufei Pang Tingyun Wang Liang Chen Xiaoyi Bao 

机构地区：[1]Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication,Shanghai Institute for Advanced Communication and Data Science,Shanghai University,Shanghai 200444,China [2]Department of Physics,University of Ottawa,Ottawa,ON K1N 6N5,Canada

出　　处：《PhotoniX》2023年第1期96-113,共18页智汇光学（英文）

基　　金：National Natural Science Foundation of China(NSFC)(62275146,61905138);Science and Technology Commission of Shanghai Municipality(20ZR1420800);State Key Laboratory of Advanced Optical Communication Systems and Networks(2022GZKF004);Shanghai Professional Technology Platform(19DZ2294000);111 Project(D20031).

摘　　要：Replica symmetry breaking(RSB),as a featured phase transition between paramagnetic and spin glass state in magnetic systems,has been predicted and validated among random laser-based complex systems,which involves numerous random modes interplayed via gain competition and exhibits disorder-induced frustration for glass behavior.However,the dynamics of RSB phase transition involving micro-state evolution of a photonic complex system have never been well investigated.Here,we report experimental evidence of transient RSB in a Brillouin random fiber laser(BRFL)-based photonic system through high-resolution unveiling of random laser mode landscape based on heterodyne technique.Thanks to the prolonged lifetime of activated random modes in BRFLs,an elaborated mapping of time-dependent statistics of the Parisi overlap parameter in both time and frequency domains was timely resolved,attributing to a compelling analogy between the transient RSB dynamics and the random mode evolution.These findings highlight that BRFL-based systems with the flexible harness of a customized photonic complex platform allow a superb opportunity for time-resolved transient RSB observation,opening new avenues in exploring fundamentals and application of complex systems and nonlinear phenomena.

关 键 词：Replica symmetry breaking Random fiber laser Brillouin scattering Rayleigh scattering 

分 类 号：TN248[电子电信—物理电子学]