在LNOI定向合器中展示Hong-Ou-Mandel干扰
Optics express
|July 21, 2023
概括
研究人员使用电信光子在绝缘体芯片上的基酸盐上演示了Hong-Ou-Mandel干扰. 集成量子光学的这一成就为先进的量子技术铺平了道路.
科学领域:
- 量子光学是一种量子光学.
- 综合光子学 综合光子学
- 量子技术 量子技术 量子技术
背景情况:
- 单光子干扰对量子光学和通信和计算等量子技术至关重要.
- 在电信波长上运行和集成量子设置提高了稳定性,紧性和可扩展性.
- 绝缘体上的酸 (LNOI) 是集成量子光学的一个有前途的材料.
研究的目的:
- 使用LNOI定向合器实现电信光子之间的Hong-Ou-Mandel (HOM) 干扰.
- 评估用于量子应用的内部设计和制造的LNOI定向合器的性能.
主要方法:
- 设计了一个参数向下转换源来产生电信光子.
- 设计和制造了一种用于平衡光束分裂的尼奥酸盐在绝缘体 (LNOI) 定向合器.
- 使用LNOI定向合器和电信光子进行了Hong-Ou-Mandel干扰测量.
主要成果:
- 实现了Hong-Ou-Mandel原始的可见度为 (93.5 ± 0.7) %.
- 可见度主要受到光子源性能的限制,与离芯片测量一致.
- 制造的LNOI定向合器展示了近乎完美的平衡光束分裂.
结论:
- 通过使用电信光子在一个集成的LNOI平台上成功演示了Hong-Ou-Mandel干扰.
- 结果验证了LNOI在电信波长的集成量子光学方面的潜力.
- 这项工作为在LNOI上开发更复杂的量子实验和设备奠定了基础.
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