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Group Delay and Spectral Phase Retrieval of Light Pulses by Spectral Intensity Measurements
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Group Delay and Spectral Phase Retrieval of Light Pulses by Spectral Intensity Measurements
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| Cuadrado-Laborde, Christian; Cruz Muñoz, José Luis; Díez Cremades, Antonio; Andrés, Miguel V. Perfil | |||
| This document is a artículoDate2022 | |||
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| We discuss a method to determine both the group delay and the phase of a given pulse in the Fourier optics domain. The proposal is based on the measurement of two intensity spectra, before and after a known quadratic phase modulation. A simple analytical equation is then used to determine the group delay in one step. If necessary, the spectral phase can be determined by simple spectral integration of the determined group delay. The proposal is supported by various numerical results and an experimental measurement to prove the concept. | |||
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Cuadrado-Laborde, Christian Cruz Muñoz, José Luis Díez Cremades, Antonio Andrés Bou, Miguel Vicente 2022 Group Delay and Spectral Phase Retrieval of Light Pulses by Spectral Intensity Measurements Optics Communications 522 128695 |
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| https://doi.org/10.1016/j.optcom.2022.128695 |