论文标题
通过时间多路复用来增强硅波导单光子源
Enhancement of a silicon waveguide single photon source by temporal multiplexing
论文作者
论文摘要
有效的单光子生成是构建光子量子技术的关键挑战之一，例如量子计算机和长距离量子网络。 Photon源多路复用 - 通过检测其中一个光子的检测预示了成功的对生成，并且其伙伴被路由到单个模式输出 - 长期以来已知可以提供混凝土解决方案，并且随着损失的减少，输出概率倾向于统一。在这里，我们提出了一个基于硅波导和低损耗的纤维开关和循环体系结构的时间多路复用的单个光子源，该光纤开关和循环体系结构可增强单个光子输出概率$ 4.5 \ pm 0.5 $，同时保留$ g^{（2）}（2）}（0）= 0.01 $。
Efficient generation of single photons is one of the key challenges of building photonic quantum technology, such as quantum computers and long-distance quantum networks. Photon source multiplexing -- where successful pair generation is heralded by the detection of one of the photons, and its partner is routed to a single mode output -- has long been known to offer a concrete solution, with output probability tending toward unity as loss is reduced. Here, we present a temporally multiplexed integrated single photon source based on a silicon waveguide and a low-loss fibre switch and loop architecture, which achieves enhancement of the single photon output probability of $4.5 \pm 0.5$, while retaining $g^{(2)}(0) = 0.01$.
