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Proceedings Paper

Strategies for power scaling VECSELs
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Paper Abstract

Strategies for power scaling VECSELs, including improving thermal management, increasing the quantum well gain/micro-cavity detuning that increases the threshold but increases roll-over temperature, and double-passing the excess pump via reflection from a metalized reflector at the back of a transparent distributed Bragg reflector (DBR) were studied. The influence of the heat spreader thickness and the pump profile on the temperature rise inside the active region was investigated using commercial finite element analysis software. Improvement was observed in optical efficiency of the VECSEL devices with a transparent DBR by double passing the pump light. Higher dissipated power at maximum output power was found in devices with larger spectral detuning between the quantum well gain and the micro-cavity detuning.

Paper Details

Date Published: 15 February 2012
PDF: 8 pages
Proc. SPIE 8242, Vertical External Cavity Surface Emitting Lasers (VECSELs) II, 824209 (15 February 2012); doi: 10.1117/12.909369
Show Author Affiliations
Tsuei-Lian Wang, College of Optical Sciences, The Univ. of Arizona (United States)
Yushi Kaneda, College of Optical Sciences, The Univ. of Arizona (United States)
Jörg Hader, College of Optical Sciences, The Univ. of Arizona (United States)
Nonlinear Control Strategies Inc. (United States)
Jerome V. Moloney, College of Optical Sciences, The Univ. of Arizona (United States)
Nonlinear Control Strategies Inc. (United States)
Bernardette Kunert, Philipps Univ. Marburg (Germany)
NAsP-III/V GmbH (Germany)
Wolfgang Stolz, Philipps Univ. Marburg (Germany)
NAsP-III/V GmbH (Germany)
Stephan W. Koch, Philipps-Univ. Marburg (Germany)


Published in SPIE Proceedings Vol. 8242:
Vertical External Cavity Surface Emitting Lasers (VECSELs) II
Anne C. Tropper, Editor(s)

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