A. Klehr, T. Prziwarka, A. Liero, Th. Hoffmann, T.N. Vu, O. Brox, J. Fricke and F. Bugge, P. Ressel, A. Ginolas, H. Wenzel, H.-J. Wünsche, S. Schwertfeger, G. Erbert, G. Tränkle

Published in:

Proc. of 2015 High Power Diode Lasers and Systems Conference (HPD) and Photonex 2015, Coventry, UK, Oct.14-15, ISBN 978-1-4673-9177-1, pp. 3-4 (2015).

Abstract:

Optical pulses in the nanosecond and picosecond rangescan be generated by gain switching, Q-switching and mode-locking of diode lasers, either as stand-alone devices or in MOPA systemscombining master oscillators (MOs) and power amplifiers (PAs).A review of recent progress achieved at FBH is presented. With again switched ridge waveguide (RW) laser optical pulses with a width of 1 ns and more than 5 nJ energy have been generated.Higher pulse peak powers up to 250 Watts (13 µJ) have been reached by gain switching a broad area laser with an in-house developed electronic circuit. Spectrally stable 5 ns long optical pulses with powers of 4 W and 16 W have generated with a RW amplifier and a tapered amplifier, respectively.

Index terms:

gain switching, Q-switching, mode-locking, modulation.

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