Optical Detection of Lasers with Near-term Technology at Interstellar Distances

This paper examines the ability to produce a laser beam detectable to a cursory survey (SNR 0.1% with a 1 m receive telescope) by an extraterrestrial intelligence using proven or near-term technology (megawatt-class lasers, telescopes tens of meters in size). We find that such lasers can produce a s...

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