论文标题
激光功率噪声下方噪声的量子相关测量
Quantum correlation measurement of laser power noise below shot noise
论文作者
论文摘要
在这封信中，研究了量子相关测量技术作为功率噪声监测方法。引入并与传统方法进行了鲜明对比的两个光电探测器信号的主要思想，该方法仅使用一个光电探测器。我们讨论如何使用该方案在检测到的光束的射击噪声下方以及单个光电探测器的电子暗噪声下方获得功率噪声信息，而常规方法是不可能的。此外，提出了实验结果，该结果证明了技术激光功率噪声的检测，低于检测到的光束的射击噪声。
In this Letter, the quantum correlation measurement technique as a method of power noise monitoring is investigated. Its principal idea of correlating two photodetector signals is introduced and contrasted to the conventional approach, which uses only a single photodetector. We discuss how this scheme can be used to obtain power noise information below the shot noise of the detected beam and also below the electronic dark noise of the individual photodetectors, both of which is not possible with the conventional approach. Furthermore, experimental results are presented, that demonstrate a detection of technical laser power noise one order of magnitude below the shot noise of the detected beam.
