Opt Lett. 2019 Jan 15;44(2):447-450. doi: 10.1364/OL.44.000447.
The development of quantum photonic information technology demands high-quality photon sources. Here we demonstrate a low-noise and high-speed photon source generated by the spontaneous four-wave mixing process in a micro/nanofiber (MNF). The pair generation in a MNF is tailorable by controlling its diameter and designed for creating signal and idler photons in the silicon-based detector wavelength range, yielding high detection efficiency and coincidence count rate. This MNF photon source can be coupled to other fiber systems with negligible coupling loss and can be efficiently exploited as fiber-based quantum light sources for quantum information applications.
量子光子信息技术的发展需要高质量的光子源。在这里，我们展示了一种由微/纳光纤（MNF）中的自发四波混频过程产生的低噪声、高速光子源。通过控制 MNF 的直径，可以对其进行可调谐，以在硅基探测器波长范围内产生信号和闲频光子，从而实现高效率的探测和高符合计数率。这种 MNF 光子源可以与其他光纤系统耦合，耦合损耗可以忽略不计，并且可以有效地用作基于光纤的量子光源，用于量子信息应用。
