论文标题
高速，高功率2D光束转向用于缓解重力波检测器中光学参数不稳定性的高速梁转向
High speed, high power 2D beam steering for mitigation of optomechanical parametric instability in gravitational wave detectors
论文作者
论文摘要
在本文中，我们提出了一种基于辐射压力的重力波（GW）检测器中的光学参数不稳定性（PI）的新策略。高功率光束的快速挠度是我们方法的关键要素。我们建立了一个基于一对声音调制器（AOM）的2D挠度系统，该系统结合了高速速度和较大的扫描范围。作为快速频率交换可配置的AOM驱动程序，我们使用了通用软件无线电外围设备（USRP）与高性能个人计算机（PC）结合使用。通过这种方式，我们演示了一个在整个扫描范围内具有固定效率的2D光束转向系统，并且在两个任意连续的偏转位置之间的过渡时间为3.6 W的两个任意连续偏转位置。
In this paper we propose a novel strategy to control optomechanical parametric instability (PI) in gravitational wave (GW) detectors, based on radiation pressure. The fast deflection of a high power beam is the key element of our approach. We built a 2D deflection system based on a pair of acousto-optic modulators (AOMs) that combines high rapidity and large scan range. As fast frequency switching configurable AOM driver we used an Universal Software Radio Peripheral (USRP) combined with a high performance personal computer (PC). In this way we demonstrate a 2D beam steering system with flat efficiency over the whole scan range and with a transition time of 50 ns between two arbitrary consecutive deflection positions for a beam power of 3.6 W.
