Multichannel interferometry optics for gradiometry (A07)

紧凑和强大的激光干涉仪的发展，可以读出多个自由度的几个测试质量同时与有限的资源和串扰。这些多通道干涉仪将构成光学梯度仪的核心，由六个或七个试验质量组成，将用于未来的大地测量梯度卫星。通过深度频率调制和定制相位计系统进行光学读出的专用测试干涉仪已经建成，并在安装扭力天平之前进行了优化。我们的技术也将在其他地面实验中发挥作用，例如平台稳定。

Compact and robust laser interferometers are developed that can read out multiple degrees of freedom of several test masses simultaneously with limited resources and crosstalk. These multichannel interferometers will form the core of optical gradiometers consisting of six or seven test masses to be used in future gradiometry satellites for geodesy. A dedicated test interferometer for the optical readout via Deep Frequency Modulation and custom phasemeter systems have been built and are optimized before being installed the torsion balance. Our technology will also be useful in other experiments on ground, e.g. for platform stabilization.