Increasing the luminance of a red emitting laser light source by spectral beam combining

G. Blume; D. Feise; A. Sahm; B. Eppich; K. Paschke

2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
(Optica Publishing Group, 2013),
paper CB_P_11

Increasing the luminance of a red emitting laser light source by spectral beam combining

G. Blume, D. Feise, A. Sahm, B. Eppich, and K. Paschke

The European Conference on Lasers and Electro-Optics 2013

Munich Germany
12–16 May 2013
ISBN: 978-1-4799-0594-2

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G. Blume, D. Feise, A. Sahm, B. Eppich, and K. Paschke, "Increasing the luminance of a red emitting laser light source by spectral beam combining," in 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference, (Optica Publishing Group, 2013), paper CB_P_11.

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Abstract

Current diode laser based projections systems suffer from low output power and hence poor visibility, especially of the red laser sources. An additional constraint for flying-spot projection is that the light source should feature an almost diffraction limited beam and a low speckle contrast. This can be achieved with tapered lasers (TPL) [1], but the output power is limited to about 1 W. One possible way to further increase the luminance is spectral beam combining of multiple emitters.

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