Young's modulus measurement using fibre-coupled self-mixing laser diode

Authors

Ke Lin, University of WollongongFollow
Yanguang Yu, University of WollongongFollow
Jiangtao Xi, University of WollongongFollow
Qinghua Guo, University of WollongongFollow
Jun Tong, University of WollongongFollow
Hui Jun Li, University of WollongongFollow

RIS ID

109152

Publication Details

K. Lin, Y. Yu, J. Xi, Q. Guo, J. Tong & H. Li, "Young's modulus measurement using fibre-coupled self-mixing laser diode," in 2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2016, pp. 157-158.

Abstract

A new fibre-coupled self-mixing laser diode is developed for measurement of Young's modulus. Instead of transmission in free space, the light path is coupled in a fibre, which enables the measuring system easily and feasibly to be installed in many application cases. A specimen made of aluminium alloy 6061 is tested by the system designed. The obtained value of Young's modulus is 70.02 GPa with 0.16% measurement accuracy, showing a high repeatability and a good agreement with the standard values reported in literatures.