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HL: Fachverband Halbleiterphysik

HL 108: Poster: Ultra-fast phenomena / Optical properties / Semiconductor laser / Devices and device concepts

HL 108.16: Poster

Donnerstag, 3. April 2014, 17:00–20:00, P1

Harmonically self-mode-locked vertical-external-cavity surface-emitting laser — •Mahmoud Gaafar¹, Christoph Möller¹, Matthias Wichmann¹, Bernd Heinen¹, Bernardette Kunert², Arash Rahimi-Iman¹, Wolfgang Stolz¹, and Martin Koch¹ — ¹Material Sciences Center and Department of Physics, Philipps-Universität Marburg, Marburg D-35032, Germany — ²NAsP III/V GmbH, Am Knechtacker 19, Marburg D-35041, Germany

We present a sesam-free harmonically mode-locked vertical-external-cavity surface-emitting laser. Mode-locking is initiated by introducing a slit near to the high reflective end mirror of our Z-shaped laser cavity. Beside single pulse operation we observed second as well as third harmonic mode-locking for higher pump powers. Our system features pulse durations penetrating the femtosecond regime at a wavelength of 1014 nm.