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Laser range imaging using the self-mixing effect in a laser diode

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2 Author(s)
Gagnon, E. ; Spar Space Syst., Spar Aerosp. Ltd., Brampton, Ont., Canada ; Rivest, J.-F.

In this work, we implemented a three-dimensional (3-D) laser range imaging system using the well-known self-mixing effect in a frequency-modulated semiconductor laser diode. The system generates 3-D point sets of a scene, using a single semiconductor laser diode serving both as the light source and as the detector. The experimental imaging accuracy was measured to be 0.87 mm at a distance of 0.55 m after some filtering. This paper focuses on the theoretical description of the self-mixing effect by presenting a survey of the existing literature as it applies to our specific implementation, followed by some experimental results

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Instrumentation and Measurement, IEEE Transactions on  (Volume:48 ,  Issue: 3 )