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Proceedings Paper

Advances in high-power 9XXnm laser diodes for pumping fiber lasers
Author(s): Jay Skidmore; Matthew Peters; Victor Rossin; James Guo; Yan Xiao; Jane Cheng; Allen Shieh; Raman Srinivasan; Jaspreet Singh; Cailin Wei; Richard Duesterberg; James J. Morehead; Erik Zucker
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Paper Abstract

A multi-mode 9XXnm-wavelength laser diode was developed to optimize the divergence angle and reliable ex-facet power. Lasers diodes were assembled into a multi-emitter pump package that is fiber coupled via spatial and polarization multiplexing. The pump package has a 135μm diameter output fiber that leverages the same optical train and mechanical design qualified previously. Up to ~ 270W CW power at 22A is achieved at a case temperature ~ 30ºC. Power conversion efficiency is 60% (peak) that drops to 53% at 22A with little thermal roll over. Greater than 90% of the light is collected at < 0.12NA at 16A drive current that produces 3.0W/(mm-mr)2 radiance from the output fiber.

Paper Details

Date Published: 4 March 2016
PDF: 7 pages
Proc. SPIE 9733, High-Power Diode Laser Technology and Applications XIV, 97330B (4 March 2016); doi: 10.1117/12.2213677
Show Author Affiliations
Jay Skidmore, Lumentum (United States)
Matthew Peters, Lumentum (United States)
Victor Rossin, Lumentum (United States)
James Guo, Lumentum (United States)
Yan Xiao, Lumentum (United States)
Jane Cheng, Lumentum (United States)
Allen Shieh, Lumentum (United States)
Raman Srinivasan, Lumentum (United States)
Jaspreet Singh, Lumentum (United States)
Cailin Wei, Lumentum (United States)
Richard Duesterberg, Lumentum (United States)
James J. Morehead, Lumentum (United States)
Erik Zucker, Lumentum (United States)

Published in SPIE Proceedings Vol. 9733:
High-Power Diode Laser Technology and Applications XIV
Mark S. Zediker, Editor(s)

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