Multichannel interferometry optics for gradiometry (A07)

研制了紧凑、坚固耐用的激光干涉仪，它可以在有限的资源和串扰的情况下，同时读出多个测试质量的多个自由度。这些多通道干涉仪将构成光学梯度仪的核心，由六到七个测试质量块组成，将用于未来的大地测量梯度卫星。用于通过深度频率调制的光学读出的专用测试干涉仪和定制的相位计系统已经建立，并在安装扭转天平之前进行了优化。我们的技术也将用于地面上的其他实验，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.