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Optical Engineering

Investigation of spectral shifts in a white light interferometer with a single interference peak
Author(s): Chunhui Xu; Yingyan Yi; Zhuo Shu; Min Li
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Paper Abstract

When the optical path difference between the two arms of an interferometer is so small that only one peak exists within the measurable interference spectrum, traditional white light interference demodulation techniques based on two adjacent interference peaks are not a suitable choice. We report an experimental approach to measure the peak wavelength shifts with only a single interference peak in a fiber white light interferometer. The temperature measurement experiments prove a linear relationship between the peak wavelength and the temperature. The temperature resolution is 0.1°C in theory.

Paper Details

Date Published: 22 April 2015
PDF: 6 pages
Opt. Eng. 54(4) 044105 doi: 10.1117/1.OE.54.4.044105
Published in: Optical Engineering Volume 54, Issue 4
Show Author Affiliations
Chunhui Xu, Wuhan Univ. of Technology (China)
Yingyan Yi, Wuhan Univ. of Technology (China)
Zhuo Shu, Wuhan Univ. of Technology (China)
Min Li, Wuhan Univ. of Technology (China)

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