PhotoniX, Volume. 4, Issue 1, 33(2023)

Transient replica symmetry breaking in Brillouin random fiber lasers

Liang Zhang1、*, Jilin Zhang1, Fufei Pang1、**, Tingyun Wang1, Liang Chen2, and Xiaoyi Bao2
Author Affiliations
  • 1Key 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
  • 2Department of Physics, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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    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.


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    Liang Zhang, Jilin Zhang, Fufei Pang, Tingyun Wang, Liang Chen, Xiaoyi Bao. Transient replica symmetry breaking in Brillouin random fiber lasers[J]. PhotoniX, 2023, 4(1): 33

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    Paper Information

    Category: Research Articles

    Received: Jul. 8, 2022

    Accepted: Sep. 1, 2023

    Published Online: Dec. 14, 2023

    The Author Email: Zhang Liang (, Pang Fufei (