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

نویسندگان

  • John R Tucker
  • Johnathon L Baque
  • Yah Leng Lim
  • Andrei V Zvyagin
  • Aleksandar D Rakić
چکیده

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.

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عنوان ژورنال:
  • Applied optics

دوره 46 25  شماره 

صفحات  -

تاریخ انتشار 2007