Share Email Print
cover

Proceedings Paper • new

High-power-class QCW red laser bars and stacks for pump and direct application
Author(s): M. Niemeyer; D. Martin; J. Pohl; M. Weyers; A. Knigge; P. Crump; H. Kissel; J. Biesenbach
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We present an overview of collaborative research between FBH (diode lasers) and Coherent|Dilas (packaging) to enable applications using red diode lasers. We summarize recent progress, focusing on the development of laser bars for highintensity pulse-pumping of alexandrite lasers. Specifically, high fill factor 1-cm bars packaged and tested (25°C, 10 Hz, 600 μs) on passively cooled mounts confirmed peak power of more than 350 𝑊 (> 0.2 đœ per bar), where efficiency was ~35% at 665 nm wavelength. Power was limited by thermal rollover. No evidence was seen for lateral lasing. Passively cooled 8-bar stack performance is presented, confirming a reliable optical power of 250 W/bar in stack format.

Paper Details

Date Published: 11 March 2019
PDF: 9 pages
Proc. SPIE 10900, High-Power Diode Laser Technology XVII, 1090009 (11 March 2019); doi: 10.1117/12.2509895
Show Author Affiliations
M. Niemeyer, Ferdinand-Braun-Institut, Leibniz-Institut fĂŒr Höchstfrequenztechnik (Germany)
D. Martin, Ferdinand-Braun-Institut, Leibniz-Institut fĂŒr Höchstfrequenztechnik (Germany)
J. Pohl, Ferdinand-Braun-Institut, Leibniz-Institut fĂŒr Höchstfrequenztechnik (Germany)
M. Weyers, Ferdinand-Braun-Institut, Leibniz-Institut fĂŒr Höchstfrequenztechnik (Germany)
A. Knigge, Ferdinand-Braun-Institut, Leibniz-Institut fĂŒr Höchstfrequenztechnik (Germany)
P. Crump, Ferdinand-Braun-Institut, Leibniz-Institut fĂŒr Höchstfrequenztechnik (Germany)
H. Kissel, Coherent|Dilas (Germany)
J. Biesenbach, Coherent|Dilas (Germany)


Published in SPIE Proceedings Vol. 10900:
High-Power Diode Laser Technology XVII
Mark S. Zediker, Editor(s)

© SPIE. Terms of Use
Back to Top