Parallel self-mixing imaging system based on an array of vertical-cavity surface-emitting lasers

John R. Tucker, Johnathon L. Baque, Yah Leng Lim, Andrei V. Zvyagin, Aleksandar D. Rakić*

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)6237-6246
Number of pages10
JournalApplied Optics
Volume46
Issue number25
DOIs
Publication statusPublished - 1 Sep 2007
Externally publishedYes

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