48% power conversion efficiency in single pump gain-shifted thulium-doped fibre amplifier

A pumping scheme was proposed to enhance the power conversion efficiency of thulium-doped fibre amplifier (TDFA). A Raman resonator and S-band amplifying module along with a dual wavelength Raman fibre laser were implemented in the pumping scheme. A fusion coupler was used to split the pump power to...

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Bibliographic Details
Published inElectronics letters Vol. 37; no. 15; pp. 943 - 945
Main Authors Roy, F., Leplingard, F., Lorcy, L., Le Sauze, A., Baniel, P., Bayart, D.
Format Journal Article
LanguageEnglish
Published 19.07.2001
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Summary:A pumping scheme was proposed to enhance the power conversion efficiency of thulium-doped fibre amplifier (TDFA). A Raman resonator and S-band amplifying module along with a dual wavelength Raman fibre laser were implemented in the pumping scheme. A fusion coupler was used to split the pump power to launch it forward and backward and to ensure high power conversion efficiency. It is reported that addition of a second pump wavelength achieved gain-shifted TDFA with improved efficiency.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0013-5194
DOI:10.1049/el:20010672