Broadband generation of photon-pairs from a CMOS compatible device
Broadband generation of photon-pairs from a CMOS compatible device
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DOI：
10.1063/5.0009361
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发表时间：
2020-06
影响因子：
4
通讯作者：
K. Sugiura;Z. Yin;R. Okamoto;L. Zhang;L. Kang;J. Chen;P. Wu;S. Chu;B. Little;S. Takeuchi
中科院分区：
文献类型：
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作者：
K. Sugiura;Z. Yin;R. Okamoto;L. Zhang;L. Kang;J. Chen;P. Wu;S. Chu;B. Little;S. Takeuchi
频率纠缠光子具有各种量子应用的潜力。最近，采用 CMOS 兼容工艺制造的片上光子对源引起了人们的关注。在本文中，我们报告了使用 CMOS 兼容环形谐振器通过自发四波混频过程宽带生成光子对。我们通过频率分辨重合检测在信号和闲散光子之间进行频率相关，并确认信号和闲散光子在 59 个频率模式上相关，带宽为 23.6 nm，这是迄今为止实现的最大数量。此外，我们从获得的涉及器件色散信息的谐振器透射光谱中再现了实验观察到的联合光谱强度。
Frequency entangled photons have potential for various quantum applications. Recently, on-chip photon-pair sources made by CMOS compatible processes have attracted attention. In this paper, we report broadband generation of photon-pairs via a spontaneous four-wave mixing process using a CMOS compatible ring resonator. We performed frequency-correlation between the signal and idler photons by frequency-resolved coincidence detection and confirmed that the signal and idler photons are correlated over 59 frequency modes, a bandwidth of 23.6 nm, which are the largest numbers achieved to date. Furthermore, we reproduced the experimentally observed joint spectral intensity from the obtained transmission spectrum of the resonator involving the information of the dispersion of the device.