Shaping of ultrashort optical pulses by using an integrated acousto-optic tunable filter

Abstract
Reshaping of ultrashort optical pulses at 1.53 μm by using an integrated acousto-optic tunable filter is reported. Control of the optical pulse shape is accomplished by adjusting the different radio-frequency electrical signals driving the acousto-optic filter. This is to our knowledge the first demonstration of ultrashort pulse shaping using an integrated-optic device and establishes a new application area for integrated wavelength-division-multiplexed devices, namely, for manipulation of coherent, ultrafast time-domain signals.