Absolute time position of picosecond laser pulse

Josef Blazej; Ivan Prochazka; Jan Kodet

doi:10.1117/12.878824

21 February 2011 Absolute time position of picosecond laser pulse

Josef Blazej, Ivan Prochazka, Jan Kodet

Proceedings Volume 7923, Free-Space Laser Communication Technologies XXIII; 79230G (2011) https://doi.org/10.1117/12.878824
Event: SPIE LASE, 2011, San Francisco, California, United States

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.

Citation Download Citation

Josef Blazej, Ivan Prochazka, and Jan Kodet "Absolute time position of picosecond laser pulse", Proc. SPIE 7923, Free-Space Laser Communication Technologies XXIII, 79230G (21 February 2011); https://doi.org/10.1117/12.878824

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