This article is cited in 3 papers

Laser applications and other topics in quantum electronics

Interstellar laser communication: implementability criterion and optimisation conditions for the addressed signal search and sending

S. K. Mankevich^a, E. P. Orlov<sup>b

a</sup> "Astrofizika" Research and Production Association, Moscow
^b P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow

Abstract: Using new opportunities offered by the construction of large optical telescopes, a laser radiation receiver with an iodine active quantum filter, high-energy iodine lasers with a diffractionlimited beam divergence and the discovery of exoplanets of the Earth type, including those located relatively not far from the Sun, we analyse the implementability of interstellar laser communication under the conditions, when the central spot of the diffraction pattern at the place of the laser signal reception by means of large optical telescopes can be made smaller than the orbit of the planet, and the signals come to the specified point of the orbit not synchronously with the planet motion because of the error in the determination of the distance between the Sun and the star, around which the planet chosen for communication rotates.

Keywords: interstellar laser communication, large optical telescopes, exoplanets, extraterrestrial civilisations, iodine laser, active quantum filter.

Received: 18.12.2015
Revised: 04.05.2016

 English version: Quantum Electronics, 2016, 46:10, 966–971

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