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Opt Lett. 2005 Oct 15;30(20):2796-8.

Femtosecond pulse-shape modulation at nanosecond rates.

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  • 1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel.


We report high-rate, computer-controlled femtosecond pulse shaping by use of an electro-optical gallium arsenide optical phased-array modulator with 2304 controlled waveguides. It provides fast modulation speed of both spectral phases and amplitudes. Limited by the driving electronics of our current setup, we were able to update a pulse shape in approximately 30 ns. This technique paves the way toward individual shaping of every single pulse of typical femtosecond mode-locked oscillators.

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