论文标题
可调的纤维Fabry-Perot腔，用于稳定在4 K的混合动力学
A tunable fiber Fabry-Perot cavity for hybrid optomechanics stabilized at 4 K
论文作者
论文摘要
我们描述了一种用于在4 K上实现混合光学系统的设备。该平台基于高素质，微米尺寸的纤维Fabry-Perot腔，可以使用压电定位器广泛调整该腔。机械谐振器可以通过第二组定位器将机械谐振器定位在中间对象配置中的腔体中。通过结合僵硬的机械设计，被动振动隔离以及有效的磅 - 划线 - 钻机 - 霍尔向反馈锁，可以实现高水平的稳定性，而无需牺牲性能或可调性。事实证明，在室温和4 K时，腔长的稳定性比几个小时的几个小时都要好。
We describe an apparatus for the implementation of hybrid optomechanical systems at 4 K. The platform is based on a high-finesse, micrometer-scale fiber Fabry-Perot cavity, which can be widely tuned using piezoelectric positioners. A mechanical resonator can be positioned within the cavity in the object-in-the-middle configuration by a second set of positioners. A high level of stability is achieved without sacrificing either performance or tunability, through the combination of a stiff mechanical design, passive vibration isolation, and an active Pound-Drever-Hall feedback lock incorporating a reconfigurable digital filter. The stability of the cavity length is demonstrated to be better than a few picometers over many hours both at room temperature and at 4 K.
