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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 2001),
  • paper CThA1

Interferometer-less coherent optical range finder

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Abstract

Optical techniques for non-contact measurements of distances can be generalized into two main categories: direct detection and coherent detection techniques. In direct detection systems, the time delays of short laser pulses are used to determine target distances.1 The resultant spatial resolution, however, is quite limited due to the difficulty in measuring small time delays.

© 2001 Optical Society of America

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