22 April 1996 Ground-to-ETS-VI narrow laser beam transmission
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Experimental results of laser beam transmission from a ground station to the engineering test satellite VI (ETS-VI) are presented. The ETS-VI that was launched in August last year has onboard laser communication equipment (LCE). A very narrow laser beam with less than 60 (mu) rad divergence was continuously transmitted to the LCE from a ground station, using a highly accurate satellite optical tracking technique. The optical power fluctuation detected at the LCE was very large. Its log-amplitude variance was about 0.5 and the maximum duration for the LCE to be able to receive an optical power more than the LCE communication detector sensitivity was about 50 milli-seconds. Theoretical analysis of laser beam fluctuation at a satellite is described and compared with the experimental results.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Masahiro Toyoda, Masahiro Toyoda, Morio Toyoshima, Morio Toyoshima, Tetsuo Takahashi, Tetsuo Takahashi, Motokazu Shikatani, Motokazu Shikatani, Yoshinori Arimoto, Yoshinori Arimoto, Kenichi Araki, Kenichi Araki, Tadashi Aruga, Tadashi Aruga, } "Ground-to-ETS-VI narrow laser beam transmission", Proc. SPIE 2699, Free-Space Laser Communication Technologies VIII, (22 April 1996); doi: 10.1117/12.238436; https://doi.org/10.1117/12.238436

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