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Proceedings Paper

Progress in joule-class diode laser bars and high brightness modules for application in long-pulse pumping of solid state amplifiers
Author(s): P. Crump; M. M. Karow; S. Knigge; A. Maaßdorf; G. Tränkle; J. Lotz; W. Fassbender; J. Neukum; J. Körner; R. Bödefeld; J. Hein
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Paper Abstract

Progress in the development of highly brilliant pump modules based on novel high-energy-class diode laser bars is presented, targeting long-pulse (2 ms) application in pumping Yb:CaF2 amplifier crystals. Bars with long resonators and high fill factors are used for low resistance and efficient cooling. Advanced extreme-double asymmetric epitaxial structures are used for high efficiency at high power. Facet passivation is used for long life at high powers, enabling operation at 600 W per bar (1.2 J). Performance of bars and passively cooled stacks is summarized and prospects for further performance enhancements are reviewed.

Paper Details

Date Published: 22 February 2017
PDF: 6 pages
Proc. SPIE 10086, High-Power Diode Laser Technology XV, 100860E (22 February 2017); doi: 10.1117/12.2252246
Show Author Affiliations
P. Crump, Ferdinand-Braun-Institut (Germany)
M. M. Karow, Ferdinand-Braun-Institut (Germany)
S. Knigge, Ferdinand-Braun-Institut (Germany)
A. Maaßdorf, Ferdinand-Braun-Institut (Germany)
G. Tränkle, Ferdinand-Braun-Institut (Germany)
J. Lotz, DILAS Diodenlaser GmbH (Germany)
W. Fassbender, DILAS Diodenlaser GmbH (Germany)
J. Neukum, DILAS Diodenlaser GmbH (Germany)
J. Körner, Lastronics GmbH (Germany)
R. Bödefeld, Lastronics GmbH (Germany)
J. Hein, Lastronics GmbH (Germany)

Published in SPIE Proceedings Vol. 10086:
High-Power Diode Laser Technology XV
Mark S. Zediker, Editor(s)

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