O.A. Ivlev1

1 JSC "Precision Systems and Instruments" (Moscow, Russia)

The use of intersatellite laser communication links on low Earth orbit spacecrafts (SC) together with the duplex radio channels «SC-ground station» will effectively develop high-speed global Internet. The purpose of the work is to ensure reliable uninterrupted duplex communication in the space ring of the transit of the information flow. The principles of spacecraft placement in orbit to ensure high reliability of communication are considered. Circuit solutions for laser communication terminals placed on spacecraft, providing continuous duplex transmission of information via an orbital ring link, coupled with a duplex radio channel between the SC and the ground station, are considered. Principal solutions for the creation of equipment for on-board laser communication terminals are proposed, the main parameters of the lasercom terminal are estimated. The concept of creating an orbital constellation of spacecraft designed for high-speed global Internet with a speed of up to 10 Gbit/s is proposed.

Ivlev O.A. Inter-satellite laser communication links for the orbital segment of the global Internet. Information-measuring and Control Systems. 2023. V. 21. № 3. P. 68−81. DOI: https://doi.org/10.18127/j20700814-202303-10 (in Russian)

1. Arun K. Majumdar., Jennifer C. Ricklin Free-Space Laser Communications: Principles and Advances (Optical and Fiber Communications Reports, 2). Springer. 2008th edition (November 26, 2007). 430 p.
2. David G. Aviv Laser Space Communications (Artech House Space Technology and Applications) Illustrated Edition (August 31, 2006) 216 p.
3. Katsman M., Meinard Dzh., Evanz G. i dr. Lazernaya kosmicheskaya svyaz. M.: Radio i svyaz. 1993. 239 s. Per. izd.: Laser satellite communications. – Englewood Cliffs (N.J.). Cop. 1987. ISBN 5-256-00507-3. (in Russian)
4. Grechukhin I.A., Ivlev O.A., Shevchik A.S. Obespechenie kachestva peredachi informatsii s borta MKS na nazemnyi punkt po lazernomu kanalu svyazi cherez atmosferu Zemli. Sb. dokladov XII Vseros. soveshchaniya-seminara "Inzhenerno-fizicheskie problemy novoi tekhniki" MGTU im. N.E. Baumana. 20−22 aprelya 2016 g. Izdatelstvo MGTU im. N.E. Baumana. M.: 2016. (in Russian)
5. Grigorev V.N., Ivlev O.A., Moshnin A.G., Sokolov Yu.E., Sumerin V.V., Shargorodskii V.D. Kosmicheskii eksperiment na MKS "Sistema lazernoi svyazi": pervye rezultaty. Elektromagnitnye volny i elektronnye sistemy. 2013. T. 18. № 1. S. 31−38. (in Russian)
6. Grechukhin I.A., Grigoriev V.N., Grishin E.A., Danileiko N.O., Ivlev O.A., Nabokin P.I., Sadovnikov M.A., Slagoda V.V., Sorokin I.V., Shargorodsky V.D., Shevchik A.S. Russian free-space laser communication experiment "SLS". 18th International Workshop on Laser Ranging - Pursuing Ultimate Accuracy & Creating New Synergies. 11−15 November 2013. Fujiyoshida. Japan.
7.  Grigoriev V.N., Ivlev O.A., Sorokin I.V., Shargorodsky V.D., Sumerin V.V. Space Experiment for In-Flight Testing of a Laser Communications System on the Russian Segment of the International Space Station. 3d l ISS Research and Development conference. 18 June 2014. Chicago, Illinois.
8. Recomendation of International Telecommunication Union ITU-R S.1590. Technical and operational characteristics of satellites operating in the range 20-375 THz. The ITU Radiocommunication Assembly. 2002.
9. Afanasenkov Yu.M. O vozmozhnosti primeneniya sotovoi blendy v zvezdnom datchike. Sb. trudov 3‑i Vseros. nauchno-tekhnich. konf. "Sovremennye problemy orientatsii i navigatsii kosmicheskikh apparatov". Pod red. G.A. Avanesova. Tarusa. Rossiya. 10−13 sentyabrya 2012 g. Institut kosmicheskikh issledovanii Rossiiskoi akademii nauk (IKI RAN). 2013. 375 s. (in Russian)