Parallel self-mixing imaging system based on an array of vertical-cavity surface-emitting lasers.
In this paper we investigate the feasibility of a massively parallel self-mixing imaging system based on an array of vertical-cavity surface-emitting lasers (VCSELs) to measure surface profiles of displacement, distance, velocity, and liquid flow rate. The concept of the system is demonstrated using a prototype to measure the velocity at different radial points on a rotating disk, and the velocity profile of diluted milk in a custom built diverging-converging planar flow channel. It is envisaged that a scaled up version of the parallel self-mixing imaging system will enable real-time surface profiling, vibrometry, and flowmetry.
Tucker
John R
JR
School of Information Technology and Electrical Engineering, The University of Queensland, St. Lucia, Queensland 4072, Brisbane, Australia.
Baque
Johnathon L
JL
Lim
Yah Leng
YL
Zvyagin
Andrei V
AV
Rakić
Aleksandar D
AD