Bright photon-pair source based on a silicon dual-Mach-Zehnder microring

• 来源期刊: 中国科学:物理学 力学 天文学（英文版）
• 年，卷（期）: 2020,（2）
• 页码范围: 3-6
• 页数: 4页
• 语种: 英文

摘要

Single photons and photon pairs are typically generated by spontaneous parametric down conversion or quantum dots;however,spontaneous four-wave mixing (SFWM) in silicon microring resonators [1] is also an appealing source of entangled photons,offering a strong cavity-enhanced nonlinear interactions while maintaining features,such as compact,simple to fabricate,and allowing for thermal tuning.However,silicon ring-resonators usually suffer from a trade-off between providing a high pair generation rate (PGR) and high extraction efficiency.