Broadband gain performance in the mid-IR using supercontinuum: 2.7 µm gain in high-purity Er3+doped tungsten tellurite glass fibers

This paper presents an experimental study of broadband mid-IR amplification that is carried out, for the first time, to the best of our knowledge, in an erbium-doped tungsten tellurite fiber. A simple, robust supercontinuum source based on a tapered germanate fiber is developed as a seed input in th...

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Bibliographic Details
Published in:Applied optics (2004) 2022-11, Vol.61 (32), p.9701
Main Authors: Muraviev, S V, Dorofeev, V V, Motorin, S E, Koptev, M Yu, Kim, A V
Format: Article
Language:English
Subjects:
Broadband
Erbium
Glass fibers
Purity
Semiconductor lasers
Tellurium dioxide
Tungsten
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Summary:This paper presents an experimental study of broadband mid-IR amplification that is carried out, for the first time, to the best of our knowledge, in an erbium-doped tungsten tellurite fiber. A simple, robust supercontinuum source based on a tapered germanate fiber is developed as a seed input in the region of 1.5–3 µm. We show that gain by a factor of 5 on one pass can be achieved in the 2.7 µm range by pumping a low-cost, high-efficiency diode laser at 976 nm using high-purity tellurite glass fibers.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.472266