论文标题
在硅亚硝酸盐加载薄膜PPLN波导中相关的双光子生成
Correlated twin-photon generation in a silicon nitrite loaded thin film PPLN waveguide
论文作者
论文摘要
基于薄膜烯橙锂在绝缘体技术上的光子对来源具有集成光学量子信息处理的巨大潜力。我们报告了这种相关的双光子对源的来源，这是由氮化硅（SIN）肋骨加载薄膜定期粘的尼贝特锂（LN）波导产生的。生成的光子对的波长为1560 \，nm，与当前的电信基础架构兼容，大带宽（21 \，THz）和$ \ sim 2.5 \ times 10^5 $ \，Pairs/s/s/mw/ghz的亮度。光子是相关的，并显示出约8000的交叉相关$ g^{（2）}（0）$。使用汉伯里棕色和Twiss效果，我们还显示了预示着预示着单个光子发射，实现了自相关$ g^{（2）_ H（2）_ H（0）_ H（0）_ H（0）\ simeq 0.044 $。
Photon-pair sources based on thin film lithium niobate on insulator technology have a great potential for integrated optical quantum information processing. We report on such a source of correlated twin-photon pairs generated by spontaneous parametric down conversion in a silicon nitride (SiN) rib loaded thin film periodically poled lithium niobate (LN) waveguide. The generated photon pairs have a wavelength centred at 1560\,nm compatible with present telecom infrastructure, a large bandwidth (21\,THz) and a brightness of $\sim 2.5\times 10^5$\,pairs/s/mW/GHz. The photons are correlated and exhibit a cross correlation $g^{(2)}(0)$ of about 8000. Using the Hanbury Brown and Twiss effect, we have also shown heralded single photon emission, achieving an autocorrelation $g^{(2)}_H(0) \simeq 0.04$.
