Spatially dependent group delay dispersion from a diffraction grating and its application to the single-shot d-scan technique

Diffraction gratings are among the most fundamental optical elements. They are essential in ultrafast optics for manipulating the spectral phase of coherent ultrashort light pulses in grating stretchers, compressors, and 4 f pulse shapers. In this work, we have exploited an effect associated with diffraction from a single grating, which can produce large amounts of spatially dependent GDD. Leveraging this effect, we propose a single-shot dispersion-scan technique, enabling the characterization of longer pulse durations than previously possible, with arbitrary chirp. We demonstrate this method by measuring 170 fs pulses from a commercial ytterbium-based laser system, both before and after post-compression in a multi-pass cell.

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Publication Details

Journal
Optica
Published
2025-11-03
DOI
https://doi.org/10.1364/optica.572768
Citations
1
Primary Topic
Laser-Matter Interactions and Applications
Type
article
Field-Weighted Citation Impact
1.25
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Spatially dependent group delay dispersion from a diffraction grating and its application to the single-shot d-scan technique

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article

Spatially dependent group delay dispersion from a diffraction grating and its application to the single-shot d-scan technique

Helder Crespo, Miguel Canhota, María L. Cerón Loayza, Anne‐Lise Viotti, Cord L. Arnold, Íñigo J. Sola, Benjamín Alonso, Chen Guo, Rosa Romero, Ivan Sytcevich, Miguel Miranda, Daniel Diaz Rivas, Cristian Barbero, Saga Westerberg, Gaspard Beaufort
article en
1 citations

Abstract

Diffraction gratings are among the most fundamental optical elements. They are essential in ultrafast optics for manipulating the spectral phase of coherent ultrashort light pulses in grating stretchers, compressors, and 4 f pulse shapers. In this work, we have exploited an effect associated with diffraction from a single grating, which can produce large amounts of spatially dependent GDD. Leveraging this effect, we propose a single-shot dispersion-scan technique, enabling the characterization of longer pulse durations than previously possible, with arbitrary chirp. We demonstrate this method by measuring 170 fs pulses from a commercial ytterbium-based laser system, both before and after post-compression in a multi-pass cell.

OpticaVol. 12(12)
Rutherford Appleton Laboratory (GB), Universidade do Porto (PT), Universidad de Salamanca (ES), Lund University (SE)
Openalex Percentile: Top 16%
Laser-Matter Interactions and Applications
1.25
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