4MOST: manufacture, assembly and test of the optical fiber system
4MOST: manufacture, assembly and test of the optical fiber system
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4MOST：光纤系统的制造、组装和测试
DOI：
10.1117/12.2629375
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
K. Disseau
中科院分区：
文献类型：
--
作者：
A. Kelz;A. Saviauk;T. Jahn;D. Plüschke;L. Wagner;F. Zscheyge;O. Bellido;W. Seifert;K. Disseau
4MOST仪器是帕拉纳尔VISTA望远镜的多目标光谱测量设备。4MOST的大复用增益是通过将2400多根光纤从望远镜焦平面连接到三个光谱仪来实现的。最终系统的特点是每个光谱仪812根光纤，电缆长度约为25米。此外，还有用于同步校准、二次导向和计量基准参考光纤的专用光纤电缆。介绍了光缆的规格、制造、装配和验收试验。子系统测试包括稀疏分布的光纤狭缝单元，用于光谱仪对准和性能验证，以及通过Cassegrain电缆包层的光纤电缆布线。
The 4MOST instrument is a multi-object spectroscopic survey facility for the VISTA telescope at Paranal. The large multiplex gain for 4MOST is achieved by connecting over 2400 optical fibers from the telescope focal plane to three spectrographs. The final system features 812 fibers per spectrograph of around 25m in cable length. In addition, there are dedicated fiber cables for simultaneous calibration, for secondary guiding, and fiducial reference fibers for metrology. The fiber cable specifications, manufacture, assembly, and acceptance tests are described. Sub-system testing includes sparsely-populated fiber-slit-units, used for spectrograph alignment and performance verification and the fiber cable routing through the Cassegrain cable wrap.