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Proceedings Paper

High-brightness 635nm tapered diode lasers with optimized index guiding
Author(s): D. Feise; G. Blume; H. Dittrich; Chr. Kaspari; K. Paschke; G. Erbert
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Paper Abstract

In this work, we present tapered diode lasers (TPL) emitting near 635 nm with an optimized lateral structure. To improve the beam quality as well as the output power, we varied the width of the ridge waveguide (RW) and the length of the RW and taper sections. All diode lasers were mounted p-side down with a common contact for both sections on a CVDdiamond heat spreader and soldered on C-mounts. Optimized TPLs emit 500 mW cw optical output power at a wavelength of 640 nm with a beam quality of M2(σ) = 2.6 and M2(1/e2) = 1.8, respectively. A maximum optical output power of 790 mW could be achieved.

Paper Details

Date Published: 18 February 2010
PDF: 12 pages
Proc. SPIE 7583, High-Power Diode Laser Technology and Applications VIII, 75830V (18 February 2010); doi: 10.1117/12.840658
Show Author Affiliations
D. Feise, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
G. Blume, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
H. Dittrich, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Chr. Kaspari, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
K. Paschke, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
G. Erbert, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)


Published in SPIE Proceedings Vol. 7583:
High-Power Diode Laser Technology and Applications VIII
Mark S. Zediker, Editor(s)

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