Range resolved lidar for long distance ranging with sub-millimeter resolution


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Piracha M. U. , Nguyen D., Mandridis D., Yılmaz T., ÖZDÜR İ. T. , Ozharar S., ...More

OPTICS EXPRESS, vol.18, no.7, pp.7184-7189, 2010 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 7
  • Publication Date: 2010
  • Doi Number: 10.1364/oe.18.007184
  • Title of Journal : OPTICS EXPRESS
  • Page Numbers: pp.7184-7189

Abstract

A lidar technique employing temporally stretched, frequency chirped pulses from a 20 MHz mode locked laser is presented. Sub-millimeter resolution at a target range of 10.1 km (in fiber) is observed. A pulse tagging scheme based on phase modulation is demonstrated for range resolved measurements. A carrier to noise ratio of 30 dB is observed at an unambiguous target distance of 30 meters in fiber. (C) 2010 Optical Society of America