Trad Nery Marina, Danilishin Stefan L, Venneberg Jasper R, Willke Benno
Opt Lett. 2020 Jul 15;45(14):3969-3972. doi: 10.1364/OL.394547.
Traditional active laser power stabilization schemes are fundamentally limited by quantum shot noise on the in-loop photodetector. One way to overcome this limitation is to implement a nondemolition sensing scheme where laser power fluctuations are transferred to motion of a micro-oscillator, which can be sensed with a high signal-to-noise ratio. In this Letter, we analyze the power stability achievable in a nondemolition scheme limited by quantum and thermal noise. Under the assumption of realistic experimental parameters, we show that generation of a strong bright squeezed quantum state of light should be possible.
传统的有源激光功率稳定方案从根本上受到环路内光电探测器上量子散粒噪声的限制。克服这一限制的一种方法是实施一种非破坏传感方案，其中激光功率波动被转移到微振荡器的运动上，这种运动可以以高信噪比进行检测。在本信函中，我们分析了受量子和热噪声限制的非破坏方案中可实现的功率稳定性。在实际实验参数的假设下，我们表明应该有可能产生强的明亮压缩量子光态。
