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Concave grating and convex mirror double dispersion spectrograph for optical network applications

机译:凹面光栅和凸面镜双色散光谱仪,用于光网络

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The concave grating stationary anastigmatic spectrograph has been modified into a novel retroreflective scheme by introducing a convex mirror concentric to the intermediate image. This provides double dispersion, diffraction-limited imaging of a long entrance slit, and substantial compensation of the stationary chromatic astigmatism. One can realize 140 independent multi/demultiplexers with 160 channels each simultaneously in the described device for optical network applications. Ray-tracing spot diagrams are presented. (C) 1997 Optical Society of America.
机译:通过引入与中间图像同心的凸面镜,将凹面光栅固定式吻合光谱仪修改为新颖的回射方案。这提供了双色散,长入射缝的衍射受限成像以及对静态色散的实质性补偿。在所描述的用于光网络应用的设备中,可以同时实现140个独立的多路复用器/多路分解器,每路160个信道。给出了射线追踪点图。 (C)1997年美国眼镜学会。

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