Special Section on Instrumentation and Techniques for Geometrical and Mechanical Quantity Measurement

Interferometer with bismuth silicon oxide crystal for vibration measurement

[+] Author Affiliations
Bin Zhang, Qibo Feng, Yunfeng Liang

Beijing Jiaotong University, Ministry of Education, Key Laboratory of Luminescence and Optical Information, No. 3 Shangyuancun, Beijing 100044, China

Opt. Eng. 55(9), 091406 (Mar 28, 2016). doi:10.1117/1.OE.55.9.091406
History: Received January 8, 2016; Accepted March 4, 2016
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Abstract.  We present a small-amplitude, high-frequency vibration measurement system. This system is based on the reflective holographic grating in a crystal of bismuth silicon oxide without applying an external electric field. A quarter-wave plate is applied in the reference beam path, with a polarizer after the crystal, to fulfill the quadrature condition when no electric field is applied to the crystal. A reflection configuration is used to obtain a good overlapping of the interference beams, which increases the beam coupling. The factors that affect the diffraction efficiency, including the signal-to-reference-beam intensity ratio and the recording angle, has been investigated. The experimental results coincide with the theoretical results, and the optimal conditions are obtained. The results of comparisons of our system with the vibrometer TEMPO show that the nanometer vibrations of a piezoelectric transducer can be reliably detected.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Bin Zhang ; Qibo Feng and Yunfeng Liang
"Interferometer with bismuth silicon oxide crystal for vibration measurement", Opt. Eng. 55(9), 091406 (Mar 28, 2016). ; http://dx.doi.org/10.1117/1.OE.55.9.091406


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