Pedestal-free 7-rod-core Tm-doped fiber for fiber lasers

Optics Express 2026 Open access

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Authors: Ivo Barton, Jan Aubrecht, Bára Švejkarová, Jan Pokorný, Michal Kamrádek, Ondrej Podrazky, Petr Vařák, Ivan Kasik, Martin Grabner, Pavel Peterka
DOI: 10.1364/oe.591864
Cited by: 1
References: 33

Abstract

Structured-core thulium-doped fibers were developed to reduce heat load, enable shorter-wavelength operation, and achieve a pedestal-free design. In a proof-of-principle experiment, laser slope efficiencies of 52% at 1907 nm and 54% at 1940 nm were achieved with respect to absorbed power.

Fields of Study & Subjects

Photonic Crystal and Fiber Optics Advanced Fiber Optic Sensors Random lasers and scattering media

Publication details

Journal / source
Optics Express
Publisher
Optica Publishing Group
Volume
34
Issue
9
Pages
16838–16838
Publication date
2 April 2026
Language
EN