Spectral Characterization of Two-Photon Interference between Independent Sources

被引：2

作者：

Duan, Lifeng ^{[1
]}

Xu, Aojie ^{[1
]}

Zhang, Yun ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Engn Sci, 1-5-1 Chofugaoka, Chofu, Tokyo 1828585, Japan

来源：

PHOTONICS | 2023年 / 10卷 / 10期

关键词：

two-photon interference; single-photon state; weak coherent state; OU-MANDEL INTERFERENCE;

D O I：

10.3390/photonics10101125

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a spectral characterization of two-photon nonclassical interference on a beam splitter (BS) between a weak coherent state source and another source, which emits a phase-randomized weak coherent state, a single-photon state, or a thermal state. Besides spectral characteristics, the average photon number ratio in a given time interval is also considered in our model. The two-photon coincidence probability of two outputs of the BS is numerically calculated with spectral bandwidth ratio and average photon number ratio. Furthermore, the noise of the detection system is taken into account. This also indicates that two-photon interference is able to significantly improve by subtracting two-photon contributions from the input state. All these parameters have a close relation to a real experiment performance and the results may pave new avenues for quantum information technology when two-photon interference between independent sources is necessary.

引用

页数：14

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