Broadband thulium-doped fiber ASE source

0537522 - ÚFE 2021 RIV US eng J - Journal Article
Aubrecht, Jan - Peterka, Pavel - Honzátko, Pavel - Moravec, Ondřej - Kamrádek, Michal - Kašík, Ivan
Broadband thulium-doped fiber ASE source.
Optics Letters. Roč. 45, č. 8 (2020), s. 2164-2167. ISSN 0146-9592. E-ISSN 1539-4794
R&D Projects: GA ČR(CZ) GA19-03141S
Institutional support: RVO:67985882
Keywords : Fibers * Amplified spontaneous emissions * Thulium-doped fibers
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.776, year: 2020
Method of publishing: Limited access
https://doi.org/10.1364/OL.389397

We report on a flat and broadband thulium-doped amplified spontaneous emission (ASE) fiber source working around 1.85 mu m in the eye-safe spectral region. Core-pumped thulium fibers were prepared in-house using the modified chemical vapor deposition method. The amplified spontaneous emission source in a backward direction with respect to the pump and in a single-ended configuration produces stable, non-polarized radiation with an output power of up to 280 mW, corresponding to a slope efficiency of about 36% with respect to the pump power. To the best of our knowledge, the device reported herein is the broadest ASE source based on Tm-doped fiber without internal spectral filtering with an output power exceeding 90 mW and full width at half-maximum of the spectrum greater than 155 nm
Permanent Link: http://hdl.handle.net/11104/0315331