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View Full Version : Video beamed from ISS using laser-based communications



MovieBuff
06-08-2014, 08:20 AM
http://www.youtube.com/watch?v=1efsA8PQmDA#t=46


The system has 10 to 1,000 times greater capacity for data transmission than radio links.

....It then transmitted its own 2.5-watt, 1,550-nanometer laser and modulated it to send the video at a peak rate of 50 megabits per second. According to NASA, OPALS transmitted the video in 3.5 seconds instead of the 10 minutes that conventional radio would have required.

Source: http://www.gizmag.com/opals-laser-communications-video-nasa-iss/32449/