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Proceedings Paper

Absolute time position of picosecond laser pulse
Author(s): Josef Blazej; Ivan Prochazka; Jan Kodet
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Paper Abstract

We are presenting some new aspects of detection of absolute time position of picosecond laser pulses. The ground-space optical links for precise and accurate time scale synchronization are running or preparing in frame of several space agencies. We are involved in several projects in position of single photon detector and timing designer. The typical optical link consists of ground segment - picosecond laser pulse transmitter, telescope, single photon avalanche detector, timing electronics, and time reference; and space segment - corner cube retroreflectors, single photon sensitive optical receiver with event timer board, and time reference to be synchronized. To ensure absolute time position we have to calibrate absolute internal delay of several semiconductor photodiodes in picosecond range detecting picosecond laser pulses on several wavelengths. The experimental results demonstrating unobvious dependence on detector type and entire experiment arrangement and its possible theoretical interpretation will be presented.

Paper Details

Date Published: 21 February 2011
PDF: 6 pages
Proc. SPIE 7923, Free-Space Laser Communication Technologies XXIII, 79230G (21 February 2011); doi: 10.1117/12.878824
Show Author Affiliations
Josef Blazej, Czech Technical Univ. in Prague (Czech Republic)
Ivan Prochazka, Czech Technical Univ. in Prague (Czech Republic)
Jan Kodet, Czech Technical Univ. in Prague (Czech Republic)

Published in SPIE Proceedings Vol. 7923:
Free-Space Laser Communication Technologies XXIII
Hamid Hemmati, Editor(s)

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