标题： 重力+波前传感器：VLTI的高对比度、激光导星自适应光学系统 显示英文标题

标题： GRAVITY+ Wavefront Sensors: High-Contrast, Laser Guide Star, Adaptive Optics systems for the VLTI

摘要： 我们介绍了Gravity Plus自适应光学（GPAO）系统的波前传感器单元，该系统将装备VLTI的所有8米级望远镜，并且是GRAVITY+项目的重要组成部分。每个波前传感器单元包括两个模块：一个具有高阶40x40 Shack-Hartmann的自然导星传感器和一个30x30的激光导星传感器。最先进的AO校正将显著提高干涉测量的性能，特别是对于NGS观测的高对比度观测以及使用LGS的所有天空覆盖，这将在VLTI仪器上首次实现。接下来，我们在完成集成和特性分析后，对波前传感器单元系统进行概述。 显示英文摘要

摘要： We present the Wavefront Sensor units of the Gravity Plus Adaptive Optics (GPAO) system, which will equip all 8m class telescopes of the VLTI and is an instrumental part of the GRAVITY+ project. It includes two modules for each Wavefront Sensor unit: a Natural Guide Star sensor with high-order 40x40 Shack-Hartmann and a Laser Guide Star 30x30 sensor. The state-of-the-art AO correction will considerably improve the performance for interferometry, in particular high-contrast observations for NGS observations and all-sky coverage with LGS, which will be implemented for the first time on VLTI instruments. In the following, we give an overview of the Wavefront Sensor units system after completion of their integration and characterization.