论文标题
使用标准SMF-28光纤的电信C波段光子对生成
Telecom C-Band Photon-Pair Generation using Standard SMF-28 Fiber
论文作者
论文摘要
光子对生成必须通过特定的泵波长和非线性光学介质的分散来满足能量节约和相匹配条件，但是找到具有所需的特定波长的光子对，生成培养基具有挑战性。在这里，我们提出了一种创建光子对的方法，即使泵波长也比介质的零GVD波长大得多。在这项研究中，我们采用了〜1310 nm GVD波长和C波段泵（1552.52 nm）的短SMF-28纤维来生成C波段光子对。测得的成对生成速率和重合与偶然比率相当于长分散型纤维中的比率。制备了极化状态，从贝尔不平等测量值中实现了2.659 +-0.094的S值。我们的结果表明，使用短的SFWM培养基在任何泵波长下几乎所有材料中的分散性能如何，都会产生足够的光子对生成速率。
Photon-pair generation must satisfy both the energy conservation and phase-matching conditions with a specific pump wavelength and dispersion of nonlinear optical medium, but finding a photon-pair, which has a desired specific wavelength, generation medium is challenging. Here, we present a method to create photon pairs that functions efficiently even the pump wavelength is much larger than the zero GVD wavelength of medium. In this study, we employ short SMF-28 fibers having ~1310 nm zero GVD wavelength and C-band pump (1552.52 nm) to generate C-band photon pairs. The measured pair generation rate and coincidence-to-accidental ratios are comparable to those from a long dispersion-shifted fiber. Polarization-entangled states are prepared, and an S value of 2.659 +- 0.094 is achieved from Bell inequality measurements. Our results indicate that the use of a short SFWM medium yields adequate photon-pair generation rates regardless of its dispersion properties in almost any material at any pump wavelength.
