Guo Yuan, Zhang Wei, Dong Shuai, Huang Yidong, Peng Jiangde
Opt Lett. 2014 Apr 15;39(8):2526-9. doi: 10.1364/OL.39.002526.
In this Letter, telecom-band degenerate-frequency photon pairs are generated in a specific mode of a silicon microring cavity by the nondegenerate spontaneous four-wave mixing (SFWM) process, under two continuous-wave pumps at resonance wavelength of two different cavity modes. The ratio of coincidence to accidental coincidence is up to 100 under a time bin width of 5 ns, showing their characteristics of quantum correlation. Their quantum interference in balanced and unbalanced Mach-Zehnder interferometers is investigated theoretically and experimentally, and the results show potential in quantum metrology and quantum information.
在本信函中，通过非简并自发四波混频（SFWM）过程，在硅微环腔的特定模式下，于两个不同腔模的共振波长处的两个连续波泵浦下，产生了电信波段简并频率光子对。在5纳秒的时间间隔宽度下，符合计数与偶然符合计数的比率高达100，显示出它们的量子关联特性。对它们在平衡和非平衡马赫-曾德尔干涉仪中的量子干涉进行了理论和实验研究，结果表明其在量子计量和量子信息方面具有潜力。
