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Arbitrary spectro-temporal pulse-shaping algorithm
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DOI：10.1364/OE.518991.png)
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Abstract
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Measurement applications in optical fields require arbitrary spectro-temporal pulse shaping. However, conventional pulse -shaping algorithms are limited to controlling only the shape of the temporal intensity waveform. To overcome this limitation, we introduce the concept of short -time Fourier transformation into the conventional iterative Fourier transform algorithm, enabling it to introduce spectro-temporal constraints using a spectrogram image as a target. We numerically demonstrate that the proposed algorithm can find an appropriate spectral phase modulation pattern to realize arbitrarily controlled spectro-temporal pulse waveforms by testing the algorithm with different spectro-temporal multi -pulse waveforms. The algorithm benefits from reducing computational costs for generating spectro-temporal waveforms. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
PHASE
MICROSCOPY