Wavelength calibration for miniature fiber optical spectrometers

WU Chuan-long; FENG Guo-ying; HAN Xu; JIANG Hai-tao; OU Qun-fei; WANG Jian-jun; LI Mi

doi:10.3969/j.issn.1001-3806.2012.05.027

LASER TECHNOLOGY > 2012 > 36(5): 682-685. > DOI: 10.3969/j.issn.1001-3806.2012.05.027

WU Chuan-long, FENG Guo-ying, HAN Xu, JIANG Hai-tao, OU Qun-fei, WANG Jian-jun, LI Mi. Wavelength calibration for miniature fiber optical spectrometers[J]. LASER TECHNOLOGY, 2012, 36(5): 682-685. DOI: 10.3969/j.issn.1001-3806.2012.05.027

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Wavelength calibration for miniature fiber optical spectrometers

1.
College of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China;
2.
Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China;
3.
Institute of Applied Electronics, Chinese Academy of Engineering Physics, Mianyang 621900, China

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Received Date: November 22, 2011
Revised Date: February 14, 2012
Published Date: September 24, 2012

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Abstract

In order to improve the measurement accuracy of the miniature fiber spectrometer,a complete calibration scheme was obtained based on the standard emission spectrum of mercury and argon lamp and three-order linear fitting of the least squares.Calibration results show that the arithmetic mean error is less than 0.167nm,standard deviation is less than 0.217nm and the fitting related degree is high.Test results show that after calibration the wavelength uncertainty is better than the 0.11nm,the error is less than 0.15nm,and the wavelength repeatability can reach 0.01nm.This result is beneficial for improving the measurement precision of spectrometers in the practical applications.
- spectroscopy,
- wavelength calibration,
- the least squares,
- fiber spectrometer

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