@inproceedings{324877a76bdb4a8dbd27505bcaf3ecc8,
title = "Pulse shortening in synchronously-pumped mode-locked Yb-fiber lasers",
abstract = "We report on theoretical and experimental study of pulsed lasing driven by synchronous pumping of an Yb-fiber laser. We show that even simple sine-wave modulation of the pump power with moderate depth (~50%) can result in shaping of a regular train of discrete laser pulses. Moreover, generated pulses are typically much shorter than pumping pulses. The pulse shortening factor rises with the modulation depth of pumping. It reached 5 in our setup. Thus, ~200-ns laser pulses were generated with sub-MHz sine-wave modulation of the pump power. Theoretical modelling predicts possibility of further pulse shortening (up to a factor of 11) by increasing maximal pump power and modulation index. Such shortening can be attributed to self-induced gain discrimination of the temporal pulse profile.",
keywords = "fiber laser, pulse shaping, synchronous pumping",
author = "Nyushkov, {B. N.} and Smirnov, {S. V.} and Ivanenko, {A. V.} and Trashkeev, {S. I.} and Kolker, {D. B.} and Kobtsev, {S. M.}",
note = "Funding Information: This work was supported by Ministry of Science and Higher Education of the Russian Federation (FSUS-2020-0036). Publisher Copyright: {\textcopyright} 2020 IEEE. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; 2020 International Conference Laser Optics, ICLO 2020 ; Conference date: 02-11-2020 Through 06-11-2020",
year = "2020",
month = nov,
day = "2",
doi = "10.1109/ICLO48556.2020.9285861",
language = "English",
series = "Proceedings - International Conference Laser Optics 2020, ICLO 2020",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "Proceedings - International Conference Laser Optics 2020, ICLO 2020",
address = "United States",
}