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Proceedings Paper

Red-emitting tapered diode lasers for display applications
Author(s): G. Blume; D. Feise; H. Dittrich; Chr. Kaspari; K. Paschke; G. Erbert
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Paper Abstract

High-brightness tapered diode lasers (TPLs) are an ideal high-luminance light source for display applications such as pocket projectors, laser TVs, laser shows, and projectors for virtual reality simulators, because TPLs have a high optical output power in the visible range with a nearly diffraction-limited beam. We present results of high-power TPLs emitting between 630 nm and 660 nm. The diode lasers have a nearly diffraction-limited beam quality (M2 1/e2 < 3) and a maximum output power up to 1.55 W. A luminous flux of 84 lm and a luminance of 47 Tcd/m2 was achieved with a TPL emitting 0.70 W near 640 nm. Lifetime tests show an operation > 5000 h at a power level of 200 mW.

Paper Details

Date Published: 28 April 2010
PDF: 12 pages
Proc. SPIE 7720, Semiconductor Lasers and Laser Dynamics IV, 77201B (28 April 2010); doi: 10.1117/12.853720
Show Author Affiliations
G. Blume, Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (Germany)
D. Feise, Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (Germany)
H. Dittrich, Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (Germany)
Chr. Kaspari, Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (Germany)
K. Paschke, Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (Germany)
G. Erbert, Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (Germany)


Published in SPIE Proceedings Vol. 7720:
Semiconductor Lasers and Laser Dynamics IV
Krassimir Panajotov; Marc Sciamanna; Angel A. Valle; Rainer Michalzik, Editor(s)

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