Optical Designs with Curved Detectors for Fiber Bragg Grating Interrogation Monitors

被引：2

作者：

Muslimov, Eduard ^{[1
]}

Pavlycheva, Nadezhda ^{[1
]}

Hugot, Emmanuel ^{[2
,3
]}

Lombardo, Simona ^{[2
]}

Nureev, Ilnur ^{[1
]}

Morozov, Oleg ^{[1
]}

机构：

[1] Kazan Natl Res Tech Univ, Kazan 420111, Russia

[2] Aix Marseille Univ, CNRS, CNES, LAM,Grp R&D Opt & Instrumentat, F-13388 Marseille, France

[3] CURVE SAS, F-13388 Marseille, France

来源：

SENSORS | 2021年 / 21卷 / 01期

基金：

欧洲研究理事会;

关键词：

fiber Bragg grating sensors; spectrograph; high angular dispersion; curved detectors; freeform optics;

D O I：

10.3390/s21010034

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

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.

引用

页码：1 / 13

页数：13

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