Time-averaged speckle reduction in scanning active imaging systems

Jean-Robert Simard; Victor C. Aitken

doi:10.1117/12.163157

1 April 1994 Time-averaged speckle reduction in scanning active imaging systems

Jean-Robert Simard, Victor C. Aitken

Author Affiliations +

Optical Engineering, Vol. 33, Issue 4, (April 1994). https://doi.org/10.1117/12.163157

Abstract

For scanning active imaging systems using direct detection, it is possible to adequately model the expected speckle noise. Modifications are introduced to the theory on speckle originally proposed by Goodman to take into account the scanning effect. The model presented here is verified experimentally for a scanning active imaging system using a CO₂ laser (10.6 μm). A direct relation between the reduction in the speckle noise resulting from the scanning process and the imaging resolution is demonstrated.

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Jean-Robert Simard and Victor C. Aitken "Time-averaged speckle reduction in scanning active imaging systems," Optical Engineering 33(4), (1 April 1994). https://doi.org/10.1117/12.163157

Published: 1 April 1994

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