Pulse-regulated single-photon generation via quantum interference in a χ (2) nonlinear nanocavity

Pulse-regulated single-photon generation via quantum interference in a χ (2) nonlinear nanocavity

A scalable on-chip single-photon source at telecommunications wavelengths is an essential component of quantum communication networks. In this work, we numerically construct a pulse-regulated single-photon source based on an optical parametric amplifier in a nanocavity. Under the condition of pulsed...

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Veröffentlicht in:Optics letters 2018-10, Vol.43 (20), p.5086-5089
Hauptverfasser: Yan, Yuyi, Cheng, Yanbei, Guan, Shengguo, Yu, Danying, Duan, Zhenglu
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container_end_page 5089
container_issue 20
container_start_page 5086
container_title Optics letters
container_volume 43
creator Yan, Yuyi
Cheng, Yanbei
Guan, Shengguo
Yu, Danying
Duan, Zhenglu
description A scalable on-chip single-photon source at telecommunications wavelengths is an essential component of quantum communication networks. In this work, we numerically construct a pulse-regulated single-photon source based on an optical parametric amplifier in a nanocavity. Under the condition of pulsed excitation, we study the photon statistics of the source using the Monte Carlo wave-function method. The results show that there exists an optimum excitation pulse width for generating high-purity single photons, while the source brightness increases monotonically with increasing excitation pulse width. More importantly, our system can be operated resonantly, and we show that in this case the oscillations in g (0) are completely suppressed.
doi_str_mv 10.1364/OL.43.005086
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