实时多散斑光谱-时间测量揭示了时空孤子的复杂性。

Real-time multispeckle spectral-temporal measurement unveils the complexity of spatiotemporal solitons.

作者信息

Guo Yuankai, Wen Xiaoxiao, Lin Wei, Wang Wenlong, Wei Xiaoming, Yang Zhongmin

机构信息

School of Physics and Optoelectronics; State Key Laboratory of Luminescent Materials and Devices; Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices; Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.

出版信息

Nat Commun. 2021 Jan 4;12(1):67. doi: 10.1038/s41467-020-20438-z.

DOI:10.1038/s41467-020-20438-z

PMID:33397989

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7782776/

Abstract

The dynamics of three-dimensional (3D) dissipative solitons originated from spatiotemporal interactions share many common characteristics with other multi-dimensional phenomena. Unveiling the dynamics of 3D solitons thus permits new routes for tackling multidisciplinary nonlinear problems and exploiting their instabilities. However, this remains an open challenge, as they are multi-dimensional, stochastic and non-repeatable. Here, we report the real-time speckle-resolved spectral-temporal dynamics of a 3D soliton laser using a single-shot multispeckle spectral-temporal technology that leverages optical time division multiplexing and photonic time stretch. This technology enables the simultaneous observation on multiple speckle grains to provide long-lasting evolutionary dynamics on the planes of cavity time (t) - roundtrip and spectrum (λ) - roundtrip. Various non-repeatable speckly-diverse spectral-temporal dynamics are discovered in both the early and established stages of the 3D soliton formation.

摘要

源自时空相互作用的三维（3D）耗散孤子的动力学与其他多维现象具有许多共同特征。揭示3D孤子的动力学因此为解决多学科非线性问题和利用其不稳定性开辟了新途径。然而，这仍然是一个开放的挑战，因为它们是多维的、随机的且不可重复的。在这里，我们报告了一种3D孤子激光器的实时散斑分辨光谱-时间动力学，该动力学使用了一种单次多散斑光谱-时间技术，该技术利用了光时分复用和光子时间拉伸。这项技术能够同时对多个散斑颗粒进行观测，以在腔时间（t）-往返和光谱（λ）-往返平面上提供持久的演化动力学。在3D孤子形成的早期和成熟阶段都发现了各种不可重复的、散斑多样的光谱-时间动力学。