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Optical Designs with Curved Detectors for Fiber Bragg Grating Interrogation Monitors

机译:具有弯曲探测器的光学设计用于光纤布拉格光栅询问监视器

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摘要

In this paper, we evaluate the application of curved detectors and freeform optics technologies for fiber Bragg gratings (FBGs) interrogation monitors design. It is shown that, in a high-dispersion spectrograph scheme, the camera part operates in special conditions, which result in a field curvature change. This field curvature can be compensated by the use of a curved detector. When used together with freeform optics, the curved detectors allow for reduction of the number of optical components to two or even one element by merging their functions. Three design examples for the range of 810–860 nm reaching the spectral resolution limit of 89–139 pm at NA=0.14 are presented to demonstrate the achieved performance and the technological trade-offs.
机译:本文评估了弯曲探测器和自由形式光学技术的应用纤维布拉格光栅(FBGS)询问监视器设计。结果表明,在高色散光谱仪方案中,相机部件在特殊条件下运行,从而导致场曲率变化。可以通过使用弯曲检测器来补偿该场曲率。当与Freeform光学器件一起使用时,弯曲检测器通过合并其功能来允许将光学组件的数量减少到两个甚至一个元件。提出了在NA = 0.14处达到8110-860nm范围内的三个设计示例,达到89-139 PM的频谱分辨率限制,以证明实现的性能和技术权衡。

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