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

• Published in: Quantum electronics (Woodbury, N.Y.) Vol. 46; no. 10; pp. 966 - 971
• Main Authors: Mankevich, S.K., Orlov, E.P.
• Format: Journal Article
• Language: English
• Published: United States Turpion Ltd and the Russian Academy of Sciences 01.01.2016
• Subjects: active quantum filter; COMMUNICATIONS; DIFFRACTION; Diffraction patterns; DISTANCE; exoplanets; Extrasolar planets; extraterrestrial civilisations; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Interstellar; interstellar laser communication; INTERSTELLAR SPACE; iodine laser; IODINE LASERS; large optical telescopes; Laser beams; Laser communications; LASER RADIATION; OPTIMIZATION; Planet detection; PLANETS; SIGNALS; SUN; TELESCOPES
• ISSN: 1063-7818; 1468-4799
• DOI: 10.1070/QEL16006

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 diffraction-limited 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.