{"id":167572,"date":"2026-04-05T11:13:24","date_gmt":"2026-04-05T09:13:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/besprovodnaya-opticheskaya-svyaz-vnutri-pomeshhenij-pokazala-novye-rekordy-skorosti-i-effektivnosti"},"modified":"2026-04-06T10:29:25","modified_gmt":"2026-04-06T08:29:25","slug":"besprovodnaya-opticheskaya-svyaz-vnutri-pomeshhenij-pokazala-novye-rekordy-skorosti-i-effektivnosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/besprovodnaya-opticheskaya-svyaz-vnutri-pomeshhenij-pokazala-novye-rekordy-skorosti-i-effektivnosti","title":{"rendered":"Bezdr\u00f4tov\u00e1 optick\u00e1 komunik\u00e1cia v interi\u00e9roch dosiahla nov\u00e9 rekordy r\u00fdchlosti a efektivity.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Poves\u0165ou zn\u00e1me \u201ehlin\u00edkov\u00e9 \u010diapky\u201c u\u017e nebud\u00fa potrebn\u00e9, ak niekto m\u00e1 obavy o zdravie v preplnenom prostred\u00ed s r\u00e1diovlnami. Bezdr\u00f4tov\u00e9 optick\u00e9 siete s\u013eubuj\u00fa uvo\u013enenie Wi-Fi v uzavret\u00fdch priestoroch, vr\u00e1tane dom\u00e1cnost\u00ed. Nov\u00e1 technol\u00f3gia nevytla\u010d\u00ed mobiln\u00e9 siete a be\u017en\u00e9 Wi-Fi pr\u00edstupov\u00e9 body, ale m\u00f4\u017ee vyrie\u0161i\u0165 probl\u00e9m nedostatku r\u00fdchlosti pri r\u00f4znych \u00faloh\u00e1ch a u\u0161etri\u0165 n\u00e1klady na spotrebu energie.<\/p>\n

\"Bezdr\u00f4tov\u00e1<\/p>\n

O prielome v v\u00fdvoji syst\u00e9mov bezdr\u00f4tov\u00e9ho optick\u00e9ho prenosu \u00fadajov ozn\u00e1mili<\/a> in\u017einieri Medzin\u00e1rodnej spolo\u010dnosti optiky a fotoniky (SPIE). Vyvinuli kompaktn\u00fd \u010dip s maticou miniaturizovan\u00fdch polovodi\u010dov\u00fdch laserov (VCSEL, Vertical-Cavity Surface-Emitting Laser), ktor\u00fd na prenos \u00fadajov vyu\u017e\u00edva svetlo namiesto r\u00e1diov\u00fdch v\u013an. V laborat\u00f3rnych testoch dosiahla syst\u00e9m rekordn\u00fa r\u00fdchlos\u0165 362,7 Gbit\/s, \u010do v\u00fdrazne prevy\u0161uje mo\u017enosti tradi\u010dn\u00fdch Wi-Fi a mobiln\u00fdch siet\u00ed.<\/p>\n

D\u00f4le\u017eit\u00e9 je, \u017ee energetick\u00e1 efekt\u00edvnos\u0165 navrhnut\u00e9ho rie\u0161enia bola dvakr\u00e1t vy\u0161\u0161ia ako pri r\u00e1diovej komunik\u00e1cii: na jeden bit inform\u00e1cie sa spotrebovalo pribli\u017ene 1,4 nJ, \u010do umo\u017en\u00ed podstatne zn\u00ed\u017ei\u0165 spotrebu energie v podmienkach narastaj\u00facej z\u00e1\u0165a\u017ee na sietiach.<\/p>\n

Na z\u00e1klade technol\u00f3gie le\u017e\u00ed \u010dip men\u0161\u00ed ako milimeter s maticou laserov vo forme 5\u00d75, kde ka\u017ed\u00fd prvok pracuje nez\u00e1visle a pren\u00e1\u0161a samostatn\u00fd pr\u00fad \u00fadajov. \u0160peci\u00e1lny optick\u00fd syst\u00e9m s mikrolentkami formuje smerovanie ka\u017ed\u00e9ho l\u00fa\u010da, vytv\u00e1raj\u00face rovnomern\u00fa sie\u0165 osvetlen\u00fdch z\u00f3n na vzdialenosti a\u017e dvoch metrov bez navz\u00e1jom ru\u0161iv\u00fdch interferenci\u00ed (experiment bol realizovan\u00fd v be\u017enej miestnosti s rozlo\u017een\u00edm vysiela\u010da a prij\u00edma\u010da na dva metre).<\/p>\n

Matica vysielac\u00edch LED di\u00f3d umo\u017e\u0148uje s\u00fa\u010dasne obsluhova\u0165 nieko\u013ek\u00fdch pou\u017e\u00edvate\u013eov v jednej miestnosti. Modula\u010dn\u00e1 sign\u00e1lu s vyu\u017eit\u00edm mno\u017estva frekven\u010dn\u00fdch kan\u00e1lov zabezpe\u010dila vysok\u00fa priepustnos\u0165 \u2014 a\u017e 362,7 Gbit\/s pri prev\u00e1dzke 21 LED z 25. R\u00fdchlos\u0165 prenosu mohla by\u0165 dokonca vy\u0161\u0161ia, no bola obmedzen\u00e1 dostupn\u00fdm optick\u00fdm prij\u00edma\u010dom zak\u00fapen\u00fdm v obchode, ktor\u00fd bol pou\u017eit\u00fd v experimente.<\/p>\n

Kompaktn\u00e9 rozmery vysielacieho \u010dipu umo\u017e\u0148uj\u00fa jeho zabudovanie do pr\u00edstupov\u00fdch bodov, osvetlenia a kdeko\u013evek, pri\u010dom zabezpe\u010duj\u00fa vysokor\u00fdchlostn\u00e9 pripojenie v tesnej bl\u00edzkosti pou\u017e\u00edvate\u013ea. Ak je pou\u017e\u00edvate\u013eov viac, v multikan\u00e1lovom re\u017eime ka\u017ed\u00fd z nich dostane svoju \u010das\u0165 vysokor\u00fdchlostn\u00e9ho toku, \u010do experiment\u00e1lne potvrdili pri organizovan\u00ed \u0161tyroch samostatn\u00fdch komunika\u010dn\u00fdch kan\u00e1lov s p\u00f4sobivou priepustnos\u0165ou. Pri tom r\u00fdchlos\u0165 fungovania ka\u017ed\u00e9ho z laserov matice dosahovala 19 Gbit\/s.<\/p>\n

V\u00fdvoj\u00e1ri zd\u00f4raz\u0148uj\u00fa, \u017ee optick\u00e1 komunik\u00e1cia nie je vystaven\u00e1 probl\u00e9mom interferencie, ktor\u00e9 s\u00fa vlastn\u00e9 r\u00e1diov\u00fdm frekvenci\u00e1m, \u010do je obzvl\u00e1\u0161\u0165 d\u00f4le\u017eit\u00e9 pre preplnen\u00e9 priestory \u2014 kancel\u00e1rie, nemocnice, d\u00e1tov\u00e9 centr\u00e1 a obytn\u00e9 priestory. Nov\u00e1 technol\u00f3gia nenahrad\u00ed Wi-Fi alebo mobiln\u00fd pr\u00edstup, ale dopln\u00ed ich, pri\u010dom odoberie hlavn\u00fa z\u00e1\u0165a\u017e z r\u00e1diov\u00fdch komponentov siete v uzavret\u00fdch priestoroch. Otvor\u00ed cestu k r\u00fdchlej\u0161\u00edm, bezpe\u010dnej\u0161\u00edm a ekologickej\u0161\u00edm bezdr\u00f4tov\u00fdm sie\u0165am bud\u00facnosti, kde vysokor\u00fdchlostn\u00fd internet pre video, virtu\u00e1lnu realitu a IoT zariadenia sa stane normou pri minim\u00e1lnej spotrebe energie.<\/p>\n

Zdroj:<\/strong><\/p>\n