Simultaneous ranging and velocimetry of fast moving targets using oppositely chirped pulses from a mode-locked laser


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Piracha M. U. , Dat Nguyen D. N. , ÖZDÜR İ. T. , Delfyett P. J.

OPTICS EXPRESS, vol.19, no.12, pp.11213-11219, 2011 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 12
  • Publication Date: 2011
  • Doi Number: 10.1364/oe.19.011213
  • Title of Journal : OPTICS EXPRESS
  • Page Numbers: pp.11213-11219

Abstract

A lidar system based on the coherent detection of oppositely chirped pulses generated using a 20 MHz mode locked laser and chirped fiber Bragg gratings is presented. Sub millimeter resolution ranging is performed with > 25 dB signal to noise ratio. Simultaneous, range and Doppler velocity measurements are experimentally demonstrated using a target moving at > 330 km/h inside the laboratory. (C) 2011 Optical Society of America