Elasto-optic Properties Investigation of Photoelastic Materials using Mach-Zehnder Interferometer(MZI)

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W. Jindarat
P.P. Yupapin
W. Jewpraditkul

Abstract

This paper presents the investigation of elasto-optic material properties using Mach-Zehnder Interferometer (MZI). These material properties are investigated by way of the use of a non-contracted test scheme, by applying force on the photoelastic material in the MZI system. The interference signal that changes due to the applied force is detected by a detector, which it is changed optical signal to electronic signal and then displayed in voltage on the oscilloscope. Results of the applied force/stress are plotted against the interference signal intensity, the linear relationship is occurred with the one using Araldite. Result are used for some material properties study. The feasibility study of using such materials for force sensor application are also investigated and discussed.


Keywords:  optical metrology, interferometry, photoelasticity


Corresponding author: E-mail: cast@kmitl.ac.th

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Section
Original Research Articles

References

[1] Shizhuo Yin, Qiming Zhang, Kun-Wook Chung, Rui Yang, Zhongyang Cheng and Yu LU., “Investigation of the electro-optic properties of electron-irradiated poly(vinylidene fluoride-trifluoroethylene) copolymer”, Opt.Eng.39(3) 670-672(March 2000).
[2] Elvio E.Alanis, Graciela G. Romeo, Carlos C. Martinez., “Interferometric measurement of diffusion coefficients through a scanning laser beam”, Opt. Eng. 39(3) 744-750 (March 2000).
[3] Raymond H. Marshall, Ya Nong Ning, Member, IEEE, Xiangqian Jiang, Andrew W. Palmer, Beverley T. Meggitt, ang Kenneth T.V. Grattan., “A Novel Electronically Scanned White-Light Interferometer Using a Mach-Zehnder Approach”, Journal of Lightwave Technology, Vol.14, No.3, March1996.
[4] D. Narayana Rao and V. Nirmal Kumar., “Stability improvements for an interferometer through study of spectral interference patterns”, Applied Optics, Vol.38, No.10, 1 April 1999.
[5] K. Fischer, J. Muller, R. Hoffmann, F. Wasse, and D. Salle., “Elastooptical Properties of SiON Layers in an Integrated Optical Interferometer Used as a pressure Sensor”, Journal of Lightwave Technology, Vol.12, No.1, January 1994.
[6] Anbo Wang, Senior Member, IEEE, Se He, Xiaojan Fang, Xiaodan Jin, and Junxiu Lin., “Optical Fiber Pressur Sensor Based on Photoelasticity and its Application”, Journal of Lightwave Technology, Vol.10, No.10, October 1992.