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arXiv · 1507.02424

Spectrally resolved Hong-Ou-Mandel interference between independent sources

Rui-Bo Jin·Thomas Gerrits·Mikio Fujiwara·Ryota Wakabayashi·Taro Yamashita·Shigehito Miki·Hirotaka Terai·Ryosuke Shimizu·Masahiro Takeoka·Masahide Sasaki
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Abstract

Hong-Ou-Mandel (HOM) interference between independent photon sources (HOMI-IPS) is the fundamental block for quantum information processing, such as quantum gate, Shor's algorithm, Boson sampling, etc. All the previous HOMI-IPS experiments were carried out in time-domain, however, the spectral information during the interference was lost, due to technical difficulties. Here, we investigate the HOMI-IPS in spectral domain using the recently developed fast fiber spectrometer, and demonstrate the spectral distribution during the HOM interference between two heralded single-photon sources, and two thermal sources. This experiment can not only deepen our understanding of HOMI-IPS in the spectral domain, but also be utilized to improve the visibility by post-processing spectral filtering.

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Rui-Bo Jin, Thomas Gerrits, Mikio Fujiwara, Ryota Wakabayashi, Taro Yamashita, Shigehito Miki, Hirotaka Terai, Ryosuke Shimizu, Masahiro Takeoka, Masahide Sasaki. 2015-07-09. Spectrally resolved Hong-Ou-Mandel interference between independent sources. https://doi.org/10.1364/oe.23.028836

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