Experimental observation of transient mode-locking in the build-up stage of a soliton fiber laser

• 作者: Yinqi Wang Xiaoyue Wang Junsong Peng Ming Yan Kun Huang Heping Zeng
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: Lasers, Optical Amplifiers, and Laser Optics
• 页码范围: 27-31
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL202119.071401

摘要

In this paper,we demonstrated a series of short-living mode-locking[ML]states[each lasting a few to a hundred micro-seconds]that happened before a fiber laser reached a steady ML state.With time-stretched dispersion Fourier transform spectroscopy,a rich diversity of transient multi-pulse dynamics were revealed spectrally and temporally.As a result,we found that the formation of the short-living ML states was related to abundant pump power,and their decaying evolution dynamics were possibly governed by gain depletion and recovery.Our results revealed unexpected transient lasing behaviors of a soliton laser and thus might be useful to understand the complex dynamics of mode-locked lasers.