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  4. Wavelength-stabilized tunable mode-locked thulium-doped fiber laser beyond 2 µm
 
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2022
Journal Article
Title

Wavelength-stabilized tunable mode-locked thulium-doped fiber laser beyond 2 µm

Abstract
We report the development of a widely tunable mode-locked thulium-doped fiber laser based on a robust chirped fiber Bragg grating (CFBG). By applying mechanical tension and compression to the CFBG, an overall tunability of 20.1 nm, spanning from 2022.1 nm to 2042.2 nm, was achieved. The observed mode-locked pulse train from this fiber laser has a repetition rate of 9.4 MHz with an average power of 12.6 dBm and a pulse duration between 9.0 ps and 12.8 ps, depending on the central wavelength. To the best of our knowledge, this is the first demonstration of a tunable mode-locked thulium-doped fiber laser operating beyond 2 µm using a CFBG as a wavelength-selective element.
Author(s)
Bartnick, M.
Ecole Polytechnique Fédérale de Lausanne
Bharathan, G.
Ecole Polytechnique Fédérale de Lausanne
Goebel, T.A.
Friedrich-Schiller-Universität Jena
Krämer, R.G.
Friedrich-Schiller-Universität Jena
Nolte, Stefan  
Friedrich-Schiller-Universität Jena  
Brès, C.-S.
Ecole Polytechnique Fédérale de Lausanne
Journal
Optics Letters  
Project(s)
Multi-scale fibre-based optical frequency combs: science, technology and applications  
Funding(s)
H2020  
Funder
European Commission  
DOI
10.1364/OL.453936
Language
English
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
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