Dual-probe homodyne quadrature laser interferometer

被引:0
|
作者
Pozar, Tomaz [1 ]
Mozina, Janez [1 ]
机构
[1] Univ Ljubljana, Fac Mech Engn, Ljubljana 1000, Slovenia
关键词
WAVES;
D O I
10.1364/AO.51.004021
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a dual-probe homodyne quadrature laser interferometer for the measurements of displacement at two separate spatial locations. This is a coupled homodyne interferometer with inverted polarity of probe signals featuring a wide dynamic range and constant sensitivity. As an application of this dual-probe interferometer, we demonstrate how to locate the pulsed-laser interaction site on a plate without knowing the propagation velocities of the laser-induced mechanical waves. (C) 2012 Optical Society of America
引用
收藏
页码:4021 / 4027
页数:7
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