论文标题
Asgard/Bifrost仪器的光束组合器
Beam combiner for the Asgard/BIFROST instrument
论文作者
论文摘要
Bifrost将是VLT干涉仪的短波长度（$λ$ = 1.0-1.7 $ m $ m），将高空间（$λ$/2B = 0.8 MAS）和光谱（最高r = 25,000）分辨率组合。它将是访客仪器的Asgard套件的一部分。高光谱分辨率的新窗口，短波长观测带来了新的挑战。在这里，我们概述了双佛罗斯特州的工具设计，突出显示了需要哪些光束组合子系统以及原因。接下来是在预期灵敏度和每个系统的实际实现方面，都进行了多合一（AIO）光束组合方案和ABCD调制的集成光学（IO）方案。
BIFROST will be a short-wavelength ($λ$ = 1.0 - 1.7$μ$m) beam combiner for the VLT Interferometer, combining both high spatial ($λ$/2B = 0.8 mas) and spectral (up to R = 25,000) resolution. It will be part of the Asgard Suite of visitor instruments. The new window of high spectral resolution, short wavelength observations brings with it new challenges. Here we outline the instrumental design of BIFROST, highlighting which beam combiner subsystems are required and why. This is followed by a comparison All-In-One (AIO) beam combination scheme and an Integrated Optics (IO) scheme with ABCD modulation both in terms of expected sensitivity and the practical implementation of each system.
