Direct Space-to-Time Pulse Shaping at 1.5 m

Femtosecond Direct Space-to-Time Pulse Shaping

The direct space-to-time (DST) pulse shaping apparatus is investigated both theoretically and experimentally. The discussion shows how the operation of the DST pulse shaper may be understood in terms of the femtosecond response of a generalized spectrometer. A complete discussion of the advantages and tradeoffs of utilizing this pulse-shaping configuration is given, including the direct scaling...

Photonically Assisted Generation of Arbitrary Millimeter-Wave and Microwave Electromagnetic Waveforms via Direct Space-to-Time Optical Pulse Shaping

We present our work in optical generation of arbitrarily shaped millimeter-wave electromagnetic waveforms. Through a novel technique, which utilizes tailored optical pulse sequences from a direct space-to-time pulse shaper to drive a high-speed optical-to-electrical converter, we generate amplitude-equalized, arbitrarily phaseand frequency-modulated waveforms at center frequencies approaching 5...

High-speed direct space-to-time pulse shaping with 1 ns reconfiguration.

In this Letter we demonstrate high-speed direct space-to-time pulse shaping with waveform reconfigurations down to the order of 1 ns. Our pulse shaper implementation incorporates a modified arrayed-waveguide grating structure and an array of optoelectronic reflection modulators.

CERIAS Tech Report 2001-27 >500 GHz repetition rate WDM pulse train generation via direct space-to-time pulse shaping – bulk & integrated optics implementations

Chirp control in the direct space-to-time pulse shaper.

The dispersion properties of the direct space-to-time pulse shaper are investigated for the first time to our knowledge. We demonstrate that phase-front curvature of the input spatial profile leads to a chirp in the output temporal waveform, which one can compensate for by varying the separation between the pulse-shaping lens and slit. Furthermore, the output intensity profile remains invariant...