论文标题
使用光学单边带调制器对单光子频率进行精确调整
Precise tuning of single-photon frequency using optical single sideband modulator
论文作者
论文摘要
单个光子保留其量子特性的频率翻译是光子量子通信系统灵活网络的重要技术。在这里，我们演示了使用光学单边带（OSSB）调节器接口不同色光子的灵活方案。通过更改驱动调制器的射频信号，我们可以轻松地移动并精确调整单个光子的频率。使用OSSB调制器，我们成功地删除了非脱生光子对的频率区分性，以获得洪 - 摩曼德的干扰，可见度超过90％。我们还证明了可区分性的水平可以由OSSB调制器精确控制。我们预计OSSB调制器将为实现高级量子信息系统提供简单且灵活的光子接口。
Frequency translation of single photons while preserving their quantum characteristics is an important technology for flexible networking of photonic quantum communication systems. Here we demonstrate a flexible scheme to interface different-color photons using an optical single sideband (OSSB) modulator. By changing the radio-frequency signal that drives the modulators, we can easily shift and precisely tune the frequency of single photons. Using the OSSB modulator, we successfully erased the frequency distinguishability of non-degenerated photon pairs to obtain the Hong-Ou-Mandel interference with a visibility exceeding 90%. We also demonstrated that the level of distinguishability can be precisely controlled by the OSSB modulator. We expect that the OSSB modulator will provide a simple and flexible photonic interface for realizing advanced quantum information systems.
