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Proceedings Paper

Tapered fused-bundle splitter capable of 1kW CW operation
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Paper Abstract

In order to test power-handling at 1kW, a special splitter component had to be developed to make use of available sources. A tapered fused-bundle (TFB) 1X7 splitter using a 1.00mm core diameter 0.22NA input fiber coupled to seven 400 micron core 0.22 NA output fibers was tested up to 860W at 976nm. Surface temperature rise was measured to be less than 15°C with active heat sinking. The above results suggest that understanding the mechanisms of optical loss for forward and backward propagating light in a TFB and the heat load that these losses generate is the key to producing multi kW components, and demonstrates that reliable kW-level all fiber devices are possible.

Paper Details

Date Published: 20 February 2007
PDF: 10 pages
Proc. SPIE 6453, Fiber Lasers IV: Technology, Systems, and Applications, 64530I (20 February 2007); doi: 10.1117/12.700466
Show Author Affiliations
Alexandre Wetter, ITF Labs. (Canada)
Mathieu Faucher, ITF Labs. (Canada)
Michael Lovelady, SPI Lasers UK Ltd. (United Kingdom)
François Séguin, ITF Labs. (Canada)

Published in SPIE Proceedings Vol. 6453:
Fiber Lasers IV: Technology, Systems, and Applications
Donald J. Harter; Andreas Tünnermann; Jes Broeng; Clifford Headley III, Editor(s)

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