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Single-photon phase spectrum recovery from the Hong-Ou-Mandel dip

2024/05/16 by Yuhang Lei, Lei, Yuhang, Wen Zhao +5 · 1 citation
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Advanced X-ray Imaging Techniques #FOS: Physical sciences #Laser-Matter Interactions and Applications #Optics (physics.optics) #Quantum Physics (quant-ph) #Spectroscopy Techniques in Biomedical and Chemical Research

paper · pdf · doi:10.48550/arxiv.2405.09808

openalex publication_date 2024/05/16 · openalex created_date 2024/05/20 · openalex updated_date 2026/07/28

Abstract

Characterizing the temporal-spectral profile of single photons is essential for quantum information protocol utilizing temporal mode for encoding. Based on the phase retrieval algorithm, we present a method to reconstruct the phase spectrum difference between two wave packets from their Hong-Ou-Mandel dip, and intensity spectra. Our confirmatory experiment with weak coherent wave packets demonstrated the accuracy of the reconstructed phase spectrum difference to within plus or minus 0.1 rad. This method is generalizable to the measurement of unknown single-photon wave packets with the aid of a reference wave packet, requiring only the collection of one-dimensional data, which simplifies and expedites the process.

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