论文标题
无拉曼的光纤光子对来源
Raman-free fibered photon-pair source
论文作者
论文摘要
二氧化硅中的拉曼散落噪声一直是实现基于高质量光纤的光子对来源的关键障碍。在这里，我们在实验中证明了如何通过定制充满Xenon填充的空心光子晶体纤维的分散来度过这一限制。源在室温下运行，旨在在有用的波长范围内生成无拉曼光子对，而惰轮则在电信处发出信号，并在可见的范围内发出信号。我们达到巧合与偶然的比率（2）高达2740，并结合了超低的HERALED G H（0）= 0.002，这表明信号比噪声比非常高，并且可忽略不计的多光子发射概率。此外，通过气压调整，我们证明了光子频率在13 thz的范围内的控制，覆盖了idler光子的S-C和L电信频带。这项工作表明，空心光子光子晶体纤维是设计高质量光子对来源的绝佳平台，并且可以在新兴量子技术中发挥驾驶作用。
Raman-scattering noise in silica has been the key obstacle toward the realisation of high quality fiber-based photon-pair sources. Here, we experimentally demonstrate how to get past this limitation by dispersion tailoring a xenon-filled hollow-core photonic crystal fiber. The source operates at room temperature, and is designed to generate Raman-free photon-pairs at useful wavelength ranges, with idler at the telecom, and signal at a visible range. We achieve a coincidence-to-accidentals ratio (2) as high as 2740 combined with an ultra low heralded g H (0) = 0.002, indicating a very high signal to noise ratio and a negligible multi-photon emission probability. Moreover, by gas-pressure tuning, we demonstrate the control of photon frequencies over a range as large as 13 THz, covering S-C and L telecom band for the idler photon. This work demonstrates that hollow-core photonic crystal fiber is an excellent platform to design high quality photon-pair sources, and could play a driving role in the emerging quantum technology.
