1kW fiber-coupled pump-module at 976nm with 50% efficiency

We present a fiber-coupled pump-module emitting more than 1kW of mode-stripped power at 976nm from a detachable 225µm, 0.22NA fiber. The electrical-to-optical efficiency at 1kW is ~50%. Six of these pump modules attached to a (6 + 1):1 multimode combiner enable a 5-6kW, single-mode, Yb-doped fiber a...

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Bibliographic Details
Published in:	Optics express Vol. 25; no. 15; p. 17695
Main Authors:	Chin, R H, Dogan, M, Fulghum, S, Jacob, J H, Chin, A K
Format:	Journal Article
Language:	English
Published:	United States 24.07.2017
ISSN:	1094-4087, 1094-4087
Online Access:	Get full text
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Summary:	We present a fiber-coupled pump-module emitting more than 1kW of mode-stripped power at 976nm from a detachable 225µm, 0.22NA fiber. The electrical-to-optical efficiency at 1kW is ~50%. Six of these pump modules attached to a (6 + 1):1 multimode combiner enable a 5-6kW, single-mode, Yb-doped fiber amplifier.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1094-4087 1094-4087
DOI:	10.1364/OE.25.017695