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Femtosecond semiconductor laser system with resonator-internal dispersion adaptation

Rouven H. Pilny, Benjamin Döpke, Jan C. Balzer, Carsten Brenner, Andreas Klehr, Andrea Knigge, Günther Tränkle, and Martin R. Hofmann

Abstract

We present a femtosecond laser diode system that is capable of autonomously adjusting itself to compensate for the external dispersion in an arbitrary application. The laser system contains a spatial light modulator inside the cavity which is controlled by an evolutionary algorithm in order to allow for phase and amplitude shaping of the laser emission. The cavity-internal dispersion control is shown to be much more efficient than an external control with a pulse shaper.

© 2017 Optical Society of America

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