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SUMMARY:Multichannel THz telecommunication based on mode division multiple
 xing (MDM) approach
DTSTART;VALUE=DATE-TIME:20200714T073000Z
DTEND;VALUE=DATE-TIME:20200714T080000Z
DTSTAMP;VALUE=DATE-TIME:20261008T195357Z
UID:indico-contribution-1903@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Pavelyev ()\nThe present talk is devoted to
  the use of beams with orbital angular momentum (OAM) [1] for development 
 THz multichannel systems based on the mode division multiplexing (MDM) app
 roach. The work [2] shows the results of the feasibility study of organizi
 ng a multichannel terahertz (THz) communication system based on controllin
 g the transverse-mode composition of a coherent beam of terahertz radiatio
 n. In [1\,2]\, however\, it was only a question of changing the transverse
  mode composition without changing the polarization state of the illuminat
 ing beam.\nIn the long run\, the development of methods for simultaneous c
 ontrol of the transverse mode composition and polarization state of a tera
 hertz beam will allow developing multichannel terahertz telecommunication 
 systems with high information capacity. In the work [3]\, the authors desi
 gned\, produced\, and examined a subwavelength axicon for converting linea
 rly polarized terahertz radiation into a cylindrically polarized beam. In 
 the present talk perspectives of application of terahertz non-uniformly po
 larized beams for telecommunication are also considered.\nThis work was su
 pported by the RF Ministry of Science and Higher Education under the gover
 nment project of the FSRC “Crystallography and Photonics” and by the R
 ussian Foundation for Basic Research (grant 19-07-00423). The experiments 
 were performed at the Shared Research Center SSTRC based on the Novosibirs
 k FEL.  \n\n\n[1]	Yu.Yu. Choporova\, B.A. Knyazev\, G.N. Kulipanov\, V.S. 
 Pavelyev\, M.A. Scheglov\, N.A. Vinokurov\, B.O. Volodkin\, V.N. Zhabin\, 
 “High-power Bessel beams with orbital angular momentum in the terahertz 
 range”\,  Physical Review A\, vol. 96(2)\, 023846\, 2017.\n[2]	Y.Y. Chop
 orova\, B.A. Knyazev\, N.D. Osintseva\, V.S. Pavelyev\, K.N. Tukmakov\, 
 “Two-channel terahertz communication based on spatial mode multiplexing\
 , Proceedings of 44th International Conference on Infrared\, Millimeter\, 
 and Terahertz Waves”\, IRMMW-THz\, 2019.\n[3]	S.N. Khonina\, K.N. Tukmak
 ov\, S.A. Degtyarev\, A.S. Reshetnikov\, V.S. Pavelyev\, B.A. Knyazev\, Yu
 .Yu. Choporova\, “Design\, fabrication and investigation of a subwavelen
 gth axicon for terahertz beam polarization transforming”\, Computer Opti
 cs\, vol. 43(5)\, pp.756-764\, 2019.\n\nhttps://indico.inp.nsk.su/event/24
 /contributions/1903/
LOCATION:Zoom Zoom 860 5034 1820
URL:https://indico.inp.nsk.su/event/24/contributions/1903/
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