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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 18 — Sep. 1, 2008
  • pp: 13685–13698

A photon-counting time-of-flight ranging technique developed for the avoidance of range ambiguity at gigahertz clock rates

Philip A. Hiskett, Colin S. Parry, Aongus McCarthy, and Gerald S. Buller  »View Author Affiliations

Optics Express, Vol. 16, Issue 18, pp. 13685-13698 (2008)

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This paper describes a rapid data acquisition photon-counting time-of-flight ranging technique that is designed for the avoidance of range ambiguity, an issue commonly found in high repetition frequency time-off-light systems. The technique transmits a non-periodic pulse train based on the random bin filling of a high frequency time clock. A received pattern is formed from the arrival times of the returning single photons and the correlation between the transmitted and received patterns was used to identify the unique target time-of-flight. The paper describes experiments in laboratory and in free space at over several hundred meters range at clock frequencies of 1GHz. Unambiguous photon-counting range-finding is demonstrated with centimeter accuracy.

© 2008 Optical Society of America

OCIS Codes
(030.5260) Coherence and statistical optics : Photon counting
(040.3780) Detectors : Low light level
(070.5010) Fourier optics and signal processing : Pattern recognition
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.3400) Remote sensing and sensors : Laser range finder
(280.3640) Remote sensing and sensors : Lidar

ToC Category:
Remote sensing and sensors

Original Manuscript: March 20, 2008
Revised Manuscript: June 27, 2008
Manuscript Accepted: July 23, 2008
Published: August 21, 2008

Philip A. Hiskett, Colin S. Parry, Aongus McCarthy, and Gerald S. Buller, "A photon-counting time-of-flight ranging technique developed for the avoidance of range ambiguity at gigahertz clock rates," Opt. Express 16, 13685-13698 (2008)

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