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Berlin 2012 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 3: Focus Session: VECSEL

HL 3.6: Topical Talk

Monday, March 26, 2012, 12:15–12:45, ER 164

Vertical-external-cavity surface-emitting lasers for high-power applications — •Alexej Chernikov1, Jens Hermann1, Bernadette Kunert1, Wolfgang Stolz1, Tsuei-Lian Wang2, Joe M. Yarborough2, Joerg Hader2, Jerome V. Moloney2, Martin Koch1, Sangam Chatterjee1, and Stephan W. Koch11Faculty of Physics and Materials Sciences Center, Philipps-Universität Marburg, Germany — 2College of Optical Sciences, The University of Arizona, Tucson, USA

Developed in the late 90s, vertical-external-cavity surface-emitting lasers combine the high output power of the edge-emitting diode lasers with the excellent beam quality of the surface-emitters. In addition, the external-cavity design offers additional advantages, faciliating frequency mixing applications as well as the operation of the device in a pulsed regime. Here, the high-power potential of the vertical-external-cavity surface-emitting lasers is discussed. Different cooling concepts are studied and the limits of the power-scaling are investigated by spacially resolved temperature measurements.

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