Optical fiber positioning based on four-quadrant detector with Gaussian fitting method

被引：0

作者：

Jin-Sheng Liu ^{[1
]}

Hua Zou ^{[1
]}

Mei-Ling Zhang ^{[1
]}

Lin-Zheng Wang ^{[1
]}

机构：

[1] College of Science,Hohai University

来源：

Research in Astronomy and Astrophysics | 2017年 / 17卷 / 07期

基金：

中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;

关键词：

instrumentation:detectors; methods:data analysis; techniques:imaging spectroscopy; telescopes;

D O I：

暂无

中图分类号：

P111 [天文仪器];

学科分类号：

070401 ;

摘要：

With the development of large-scale spectral surveys, fiber positioning technology has been developing rapidly. Because of the performance advantages of a four-quadrant(4Q) detector, a fiber positioning and real-time monitoring system based on the 4Q detector is proposed. The detection accuracy of this system is directly determined by the precision of the center of the spot. A Gaussian fitting algorithm based on the 4Q detector is studied and applied in the fiber positioning process to improve the calculated accuracy of the spot center. The relationship between the center position of the incident spot and the detector output signal is deduced. An experimental platform is built to complete the simulated experiment. Then we use the Gaussian fitting method to process experimental data, compare the fitting value with the theoretical one and calculate the corresponding error.

引用

页码：117 / 122

页数：6

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