Instrumentation, Techniques, and Measurement

Investigation of spectral shifts in a white light interferometer with a single interference peak

[+] Author Affiliations
Chunhui Xu, Yingyan Yi, Zhuo Shu, Min Li

Wuhan University of Technology, Department of Physics, Nanhu Campus, Physics Building 506, Wuhan 430070, China

Opt. Eng. 54(4), 044105 (Apr 22, 2015). doi:10.1117/1.OE.54.4.044105
History: Received December 15, 2014; Accepted March 27, 2015
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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.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Chunhui Xu ; Yingyan Yi ; Zhuo Shu and Min Li
"Investigation of spectral shifts in a white light interferometer with a single interference peak", Opt. Eng. 54(4), 044105 (Apr 22, 2015). ; http://dx.doi.org/10.1117/1.OE.54.4.044105


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