A. Klehr, A. Liero, Th. Hoffmann, J. Schulz, S. Schwertfeger, H. Wenzel, G. Erbert, W. Heinrich and G. Tränkle

Published in:

3rd Electronic System-Integration Technology Conference (ESTC), Berlin, Germany, Sep. 13-16, pp. 1-4 (2010).

Abstract:

A new compact picosecond light source is presented. It consists of a master oscillator, an ultra fast pulse picker element and integrated high-frequency electronics arranged on a micro bench with a footprint of 5 cm x 4 cm. The master oscillator is a laser consisting of 200 µm long saturable absorber, 1500 µm long gain, 8000 µm long cavity, 200 µm long DBR and 100 µm long monitor sections. Pulses with a width of 100 ps and a peak power of 0.5 W are generated by hybrid mode locking. Despite the 1 cm long cavity, the repetition rate is still 4.3 GHz. The semiconductor pulse picking element is based on a ridge waveguide acting as an optical gate and a tapered gain section for pulse amplification. The light source emits pulses with with a peak power of more than 30 W pulse peak power and allows a free choice of the repetition rate in the range between 1 kHz and 100 MHz.

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