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Cross-phase modulation aberrations in time lenses

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Abstract

We study the aberrations of four-wave mixing based time lenses resulting from the cross-phase modulations of the pump wave. These temporal aberrations have no spatial equivalent and are important when imaging weak signals with strong pump waves. We show that as the pump power increases, the cross-phase modulations of the pump are responsible for shifting, defocusing, and imposing temporal coma aberrations on the image. We present experimental results of these aberrations with high agreement to analytical and numerical calculations.

© 2021 Optical Society of America

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Data Availability

Data underlying the results presented in this paper are available in Ref. [18].

18. F. Moti, “Measured data by the time-lens for 10 different pump powers,” figshare (2021), https://doi.org/10.6084/m9.figshare.14668494.

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Figures (4)

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Equations (14)

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