Pump radiation distribution in multi-element first cladding laser fibres

Mikhail A Mel'kumov; Igor' A Bufetov; M M Bubnov; Aleksei V Shubin; S L Semenov; Evgenii M Dianov

doi:10.1070/QE2005v035n11ABEH013029

Quantum Electronics

LASERS

Pump radiation distribution in multi-element first cladding laser fibres

Mikhail A Mel'kumov¹, Igor' A Bufetov¹, M M Bubnov¹, Aleksei V Shubin¹, S L Semenov¹ and Evgenii M Dianov¹

©, 2005 Kvantovaya Elektronika and Turpion Ltd
Quantum Electronics, Volume 35, Number 11 Citation Mikhail A Mel'kumov et al 2005 Quantum Electron. 35 996 DOI 10.1070/QE2005v035n11ABEH013029

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¹ Fiber Optics Research Center, Russian Academy of Sciences, Moscow, Russian Federation

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Abstract

Pump radiation transfer is studied experimentally in multi-element first cladding laser fibres. A model of this process is proposed, which is in good agreement with experimental results. An all-fibre single-mode cw ytterbium laser based on a three-element first cladding fibre with an output power of 100W is fabricated.

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