{"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\/cs\/blog\/news\/besprovodnaya-opticheskaya-svyaz-vnutri-pomeshhenij-pokazala-novye-rekordy-skorosti-i-effektivnosti","title":{"rendered":"Bezdr\u00e1tov\u00e1 optick\u00e1 komunikace uvnit\u0159 budov dos\u00e1hla nov\u00fdch rychlostn\u00edch a efektivn\u00edch rekord\u016f","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Proslul\u00e1 \u201ehlin\u00edkov\u00e1 \u010depice\u201c ji\u017e nebude pot\u0159eba, pokud se n\u011bkdo ob\u00e1v\u00e1 o zdrav\u00ed v p\u0159epln\u011bn\u00e9m r\u00e1diovlnami okoln\u00edm prostoru. Bezdr\u00e1tov\u00e9 optick\u00e9 s\u00edt\u011b slibuj\u00ed uvolnit Wi-Fi v uzav\u0159en\u00fdch prostor\u00e1ch, v\u010detn\u011b dom\u00e1cnost\u00ed. Nov\u00e1 technologie nevytla\u010d\u00ed mobiln\u00ed komunikaci a tradi\u010dn\u00ed Wi-Fi body, ale m\u016f\u017ee vy\u0159e\u0161it probl\u00e9m nedostatku rychlosti pro \u0159adu \u00faloh a u\u0161et\u0159it na spot\u0159eb\u011b energie.<\/p>\n

\"Bezdr\u00e1tov\u00e1<\/p>\n

O pr\u016flomu ve v\u00fdvoji syst\u00e9m\u016f bezdr\u00e1tov\u00e9ho optick\u00e9ho p\u0159enosu dat ozn\u00e1mili<\/a> in\u017een\u00fd\u0159i Mezin\u00e1rodn\u00ed spole\u010dnosti pro optiku a fotoniku (SPIE). Vyvinuli kompaktn\u00ed \u010dip s uspo\u0159\u00e1d\u00e1n\u00edm miniaturizovan\u00fdch polovodi\u010dov\u00fdch laser\u016f (VCSEL, Vertical-Cavity Surface-Emitting Laser), kter\u00fd k p\u0159enosu dat vyu\u017e\u00edv\u00e1 sv\u011btlo m\u00edsto r\u00e1diov\u00fdch vln. V laboratorn\u00edch testech syst\u00e9m dos\u00e1hl rekordn\u00ed rychlosti 362,7 Gb\/s, co\u017e v\u00fdrazn\u011b p\u0159ekon\u00e1v\u00e1 mo\u017enosti tradi\u010dn\u00edch Wi-Fi a mobiln\u00edch s\u00edt\u00ed.<\/p>\n

D\u016fle\u017eit\u00e9 je, \u017ee energetick\u00e1 \u00fa\u010dinnost navrhovan\u00e9ho \u0159e\u0161en\u00ed byla dvakr\u00e1t vy\u0161\u0161\u00ed ne\u017e u r\u00e1diov\u00e9 komunikace: na jeden bit informace zbylo p\u0159ibli\u017en\u011b 1,4 nJ, co\u017e umo\u017en\u00ed v\u00fdrazn\u011b sn\u00ed\u017eit spot\u0159ebu energie v podm\u00ednk\u00e1ch rostouc\u00ed z\u00e1t\u011b\u017ee na s\u00edt\u00edch.<\/p>\n

Z\u00e1kladem technologie je \u010dip o velikosti m\u00e9n\u011b ne\u017e milimetr se souborem laser\u016f ve form\u011b matice 5\u00d75, kde ka\u017ed\u00fd prvek pracuje nez\u00e1visle a p\u0159en\u00e1\u0161\u00ed samostatn\u00fd datov\u00fd tok. Speci\u00e1ln\u00ed optick\u00fd syst\u00e9m s mikro\u010do\u010dkami formuje sm\u011brov\u00e1n\u00ed ka\u017ed\u00e9ho paprsku, vytv\u00e1\u0159ej\u00edc\u00ed rovnom\u011brnou s\u00ed\u0165 osv\u011btlen\u00fdch z\u00f3n do vzd\u00e1lenosti a\u017e dvou metr\u016f bez vz\u00e1jemn\u00fdch ru\u0161en\u00ed (experiment byl proveden v b\u011b\u017en\u00e9 m\u00edstnosti s um\u00edst\u011bn\u00edm vys\u00edla\u010de a p\u0159ij\u00edma\u010de na dva metry).<\/p>\n

Matice vys\u00edlac\u00edch LED diod umo\u017e\u0148uje sou\u010dasn\u011b obsluhovat n\u011bkolik u\u017eivatel\u016f v jednom prostoru. Modulace sign\u00e1lu s vyu\u017eit\u00edm mnoha frekven\u010dn\u00edch kan\u00e1l\u016f zajistila vysokou propustnost \u2014 a\u017e 362,7 Gb\/s p\u0159i provozu 21 z 25 LED diod. Rychlost p\u0159enosu mohla b\u00fdt je\u0161t\u011b vy\u0161\u0161\u00ed, byla v\u0161ak omezena dostupn\u00fdm fotop\u0159ij\u00edma\u010dem zakoupen\u00fdm v obchod\u011b, kter\u00fd byl pou\u017eit v experimentu.<\/p>\n

Kompaktn\u00ed rozm\u011bry vys\u00edlac\u00edho \u010dipu umo\u017e\u0148uj\u00ed jeho integrov\u00e1n\u00ed do p\u0159\u00edstupov\u00fdch bod\u016f, osv\u011btlen\u00ed a t\u00e9m\u011b\u0159 kdekoli, co\u017e zaji\u0161\u0165uje vysokorychlostn\u00ed p\u0159ipojen\u00ed v bezprost\u0159edn\u00ed bl\u00edzkosti u\u017eivatele. Pokud je v\u00edce u\u017eivatel\u016f, pak v multilinkov\u00e9m re\u017eimu ka\u017ed\u00fd z nich z\u00edsk\u00e1 svou \u010d\u00e1st vysokorychlostn\u00edho provozu, co\u017e bylo potvrzeno experiment\u00e1ln\u011b b\u011bhem organizace \u010dty\u0159 samostatn\u00fdch komunika\u010dn\u00edch kan\u00e1l\u016f s ohromuj\u00edc\u00ed propustnost\u00ed. P\u0159itom rychlost pr\u00e1ce ka\u017ed\u00e9ho z laser\u016f matice dos\u00e1hla 19 Gb\/s.<\/p>\n

V\u00fdvoj\u00e1\u0159i zd\u016fraz\u0148uj\u00ed, \u017ee optick\u00e9 spojen\u00ed nen\u00ed n\u00e1chyln\u00e9 k probl\u00e9m\u016fm s interferenc\u00ed, kter\u00e9 se t\u00fdkaj\u00ed radiov\u00fdch frekvenc\u00ed, co\u017e je obzvl\u00e1\u0161\u0165 d\u016fle\u017eit\u00e9 pro nabit\u00e1 m\u00edsta \u2014 kancel\u00e1\u0159e, nemocnice, datov\u00e1 centra a obytn\u00e9 prostory. Nov\u00e1 technologie nenahrad\u00ed Wi-Fi ani mobiln\u00ed spojen\u00ed, ale dopln\u00ed je, \u010d\u00edm\u017e sn\u00ed\u017e\u00ed hlavn\u00ed z\u00e1t\u011b\u017e z r\u00e1diov\u00fdch komponent\u016f s\u00edt\u011b uvnit\u0159 budov. Otev\u0159e dve\u0159e rychlej\u0161\u00edm, bezpe\u010dn\u011bj\u0161\u00edm a ekologicky \u0161etrn\u00fdm bezdr\u00e1tov\u00fdm s\u00edt\u00edm budoucnosti, kde vysokorychlostn\u00ed internet pro video, virtu\u00e1ln\u00ed realitu a IoT za\u0159\u00edzen\u00ed se stane normou p\u0159i minim\u00e1ln\u00ed spot\u0159eb\u011b energie.<\/p>\n

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