Optical In-Well Pumping of a Semiconductor Disk Laser With High Optical Efficiency
S.-S. Beyertta, M. Zornb, T. Küblera, H. Wenzelb, M. Weyersb, A. Giesena, G. Tränkleb, U. Braucha
Published in:
IEEE J. Quantum Electron., vol. 41, no. 12, pp. 1439-1449 (2005).
Abstract:
Optical in-well pumping is shown to lead to highly efficient operation of semiconductor disk-lasers using resonant absorption or using external optics. Pump radiation absorption of 70% at 940nm is demonstrated for a laser emitting around 980 nm. Laser output power was 1.9 W with slope efficiencies up to 35% based on the incident power.
a Institut für Strahlwerkzeuge, Universität Stuttgart, D-79569 Stuttgart, Germany
b Ferdinand-Braun-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany
Index Terms:
InGaAs, optical pumping, quantum well, semiconductor disk laser, vertical external-cavity surface-emitting laser (VCSEL).
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