Wide-angle narrow-bandpass optical detection system optimally designed to have a large signal-to-noise ratio

被引：5

作者：

Schweitzer, N ^{[1
]}

Arieli, Y ^{[1
]}

机构：

[1] Jerusalem Coll Technol, Dept Electroopt & Appl Phys, IL-91160 Jerusalem, Israel

来源：

APPLIED OPTICS | 2000年 / 39卷 / 06期

关键词：

D O I：

10.1364/AO.39.000913

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method for achieving optimal design of a wide-angle narrow-bandpass optical detection system composed of a spherical interference filter and a circular photodetector is introduced. It was found that there is an optimal photodetector diameter that maximizes the signal-to-noise ratio (SNR) for a given filter configuration. We show how to optimize optical detection systems based on spherical interference filters for all the important parameters simultaneously. The SNR values of these systems are compared with the SNR values of spherical-step-filter-based detection systems. When large silicon photodetectors are used, the two systems have equal SNR values so that the more economical step-filter systems are preferable. The results given here in the near-infrared region can be used for the optimization of any configuration of a detection system based on a spherical interference filter and a silicon photodetector working at the same wavelength range, without further calculations. (C) 2000 Optical Society of America.

引用

页码：913 / 918

页数：6

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