Simultaneous Frequency Conversion and Spectral-Temporal Shaping of Single-Photon Pulses Article Swipe

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Michał Mikołajczyk , Ali Golestani , Rex H. S. Bannerman , James C. Gates , Peter G. R. Smith , Michał Karpiński ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.1051/epjconf/202533506011

We demonstrate a quantum interface that simultaneously converts the wavelength, bandwidth, and duration of single-photon-level pulses, enabling compatibility between disparate quantum systems. Using difference frequency generation in a lithium niobate waveguide driven by a highly chirped pump, we transform pulses from 798 nm, 5 GHz, 150 ps (quantum dot-like) to 1300 nm, 35 GHz, < 25 ps (telecom standard). This nonlinear optical time lens achieves over 80% internal conversion efficiency and compresses output pulses below detector resolution. The device offers a compact solution for integrating quantum emitters, memories, and telecom networks, with potential for further pulse shape control.

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Type: article
Language: en
Landing Page: https://doi.org/10.1051/epjconf/202533506011
PDF: https://www.epj-conferences.org/articles/epjconf/pdf/2025/20/epjconf_eosam2025_06011.pdf
OA Status: diamond
References: 1
OpenAlex ID: https://openalex.org/W4414393952

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DOI: https://doi.org/10.1051/epjconf/202533506011

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Title: Simultaneous Frequency Conversion and Spectral-Temporal Shaping of Single-Photon Pulses

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Type: article

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Language: en

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Publication year: 2025

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Publication date: 2025-01-01

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Authors: Michał Mikołajczyk, Ali Golestani, Rex H. S. Bannerman, James C. Gates, Peter G. R. Smith, Michał Karpiński

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Landing page: https://doi.org/10.1051/epjconf/202533506011

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PDF URL: https://www.epj-conferences.org/articles/epjconf/pdf/2025/20/epjconf_eosam2025_06011.pdf

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Cited by: 0

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