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, Gerald S. Buller

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

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-offlight 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.

Original languageEnglish
Pages (from-to)13685-13698
Number of pages14
JournalOptics Express
Volume16
Issue number18
DOIs
Publication statusPublished - 1 Sep 2008

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