J4 ›› 2009, Vol. 26 ›› Issue (5): 513-517.

• 光谱 •    下一篇

光纤傅里叶变换光谱技术中激光辅助干涉仪的研究

余瑞兰1 朱灵2 张龙2   

  1. 1 安徽师范大学物理与电子信息学院, 安徽 芜湖 241000;2 中国科学院安徽光学精密机械研究所, 安徽 合肥 230031
  • 出版日期:2009-09-28 发布日期:2009-08-27
  • 通讯作者: 余瑞兰(1976-),女,安徽黄山人,硕士,主要从事光纤傅里叶变换光谱仪的研究工作。 E-mail:yuruilan@gmail.com
  • 基金资助:

    安徽省原子与分子物理重点学科建设基金(2002ZDXK)

Studies on laser reference interferometer of fiber-optic Fourier transform spectroscopy

YU Rui-Lan1, ZHU Ling2, ZHANG Long2   

  1.  1 College of Physics and Electronic Information, Anhui Normal University, Wuhu 241000, China; 2 Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • Published:2009-09-28 Online:2009-08-27

摘要:

针对光纤傅里叶变换光谱仪(Fiber Fourier Transform Spectrometer, FFTS)中压电陶瓷非线性调制导致的复原光谱图畸变问题,设计了He-Ne激光辅助干涉仪,利用该干涉仪实现被测光的等光程间隔采样,以及为待测光源光谱定标提供依据。使用该干涉仪测量了632.8nm He-Ne激光光源的干涉信号,采用傅里叶变换算法计算了其光谱图,并与传统光栅光谱仪测量的光谱图进行了比较,分析了两者存在的差异及其原因,为FFTS的后续研制工作提供了有益参考。

关键词: 纤维与波导光学, 激光辅助干涉仪, 光纤Michelson干涉仪, 傅里叶变换光谱仪, 光谱测量

Abstract:

A laser reference interferometer to eliminate the distortion of recovery spectrum caused by piezoelectric ceramic’s non-linear modulation in Fiber Fourier Transform Spectrometer (FFTS) was designed. It can offer equal sampling intervals for sampling tested source. It also can provide the basis calibration for the tested spectrum. It acquired the interference signal of He-Ne laser whose wavelength is 632.8nm by this FMI. Fourier Transform algorithm is used to calculate the spectrum. The difference between the spectrum acquired by our experiment and by traditional grating spectrometer are also analyzed which can present helpful reference to develop FFTS further.

Key words: fiber and waveguide optics, laser reference interferometer, optical-Fiber Michelson interferometer, Fourier transform spectroscopy, spectrum measurement