Open AccessOn the Q-switching bunch dynamics in the build-up of stretched-pulse mode-locking
Author(s) -
Xiaoyue Wang,
Xi-Feng Ren,
Junsong Peng,
Xuling Shen,
Kun Huang,
Ming Yan,
Heping Zeng
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.002747
Subject(s) - mode locking , optics , pulse (music) , fiber laser , mode (computer interface) , q switching , pulse shaping , laser , ultrashort pulse , physics , materials science , computer science , detector , operating system
In this paper, we experimentally investigate a rich set of Q-switching bunches in the build-up of stretched-pulse mode-locking of an erbium-doped fiber laser. Interestingly, regular clustering of periodic Q-switched mode-locking states is observed in the self-starting process. Moreover, with time-stretch spectroscopy, we record periodic pulse-to-pulse spectral evolution occurring in these turbulent and rapidly-evolving pre-mode-locking states.