一种用于大天区面积多目标天文望远镜的高分辨率光纤光谱仪设计方案

HIGH RESOLUTION SPECTROMETER DESIGN FOR THE LAMOST TELESCOPE

本文针对大天区面积多目标天文望远镜的要求，提出了一种高分辨率光谱仪的设计方案．它采用ＷＨＩＴＥＰＵＰＩＬ型结构形式的光学系统，用焦面芯径变换法来压缩光纤芯径，从而使整个光学系统的结构大大缩小．光纤的输出端交错排列成两排。

A high resolution spectrometer is designed for use at the White Pupil of the LAMOST 4 meter telescope.In this spectrometer,with the method of Focus Plane Fibre Core Diameter Change,light out of a 300 symbol 109\f“Symbol”\s 12μ m fibre is transfer to 7 fibres which core diameter is 120 symbol 109\f“Symbol”\s 12μm So,the dimensiom of this spectrometer is decreased.At the outputs of end the fibres are arranged in two line.150 objects can be detected at one time.