在具有近零净腔色散的光纤激光器中形成的新型光学孤子分子。

Novel optical soliton molecules formed in a fiber laser with near-zero net cavity dispersion.

作者信息

Hu Xiao, Guo Jun, Wang Jun, Ma Jie, Zhao Luming, Yoo Seongwoo, Tang Dingyuan

机构信息

Julong College, Shenzhen Technology University, 518118, Shenzhen, China.

School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.

出版信息

Light Sci Appl. 2023 Feb 7;12(1):38. doi: 10.1038/s41377-023-01074-w.

DOI:10.1038/s41377-023-01074-w

PMID:36746912

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9902550/

Abstract

Soliton molecules (SMs) are stable bound states between solitons. SMs in fiber lasers are intensively investigated and embody analogies with matter molecules. Recent experimental studies on SMs formed by bright solitons, including soliton-pair, soliton-triplet or even soliton-quartet molecules, are intensive. However, study on soliton-binding states between bright and dark solitons is limited. In this work, the formation of such novel SMs in a fiber laser with near-zero group velocity dispersion (ZGVD) is reported. Physically, these SMs are formed because of the incoherent cross-phase modulation of light and constitute a new form of SMs that are conceptually analog to the multi-atom molecules in chemistry. Our research results could assist the understanding of the dynamics of large SM complexes. These findings may also motivate potential applications in large-capacity transmission and all-optical information storage.

摘要

孤子分子（SMs）是孤子之间的稳定束缚态。光纤激光器中的孤子分子受到了深入研究，并体现出与物质分子的相似性。近期关于由亮孤子形成的孤子分子的实验研究十分密集，包括孤子对、孤子三重态甚至孤子四重态分子。然而，对亮孤子与暗孤子之间的孤子束缚态的研究却很有限。在这项工作中，报道了在具有近零群速度色散（ZGVD）的光纤激光器中此类新型孤子分子的形成。从物理角度来看，这些孤子分子是由于光的非相干交叉相位调制而形成的，构成了一种新形式的孤子分子，在概念上类似于化学中的多原子分子。我们的研究结果有助于理解大型孤子分子复合体的动力学。这些发现也可能推动在大容量传输和全光信息存储方面的潜在应用。