Wararka - Waveband ee fiber indhaha

Xidhiidhka fibre-araggu waxa uu iftiinka u qaataa sida gudbiyaha macluumaadka si loo wada xidhiidho.Waxaa lagu kala qaadaa iyada oo loo marayo xudunta fiber-ka.Si kastaba ha ahaatee, iftiin kasta oo iftiin ah kuma habboona isgaarsiinta.Luminta gudbinta waxay ku kala duwan tahay hirarka iftiinka kala duwan.Si loo gaaro khasaaraha yar iyo si hufan, saynisyahannadu waxay had iyo jeer raadiyaan iftiinka ugu habboon.

850nm Waveband

Horraantii 1980-meeyadii, saynisyahannadu waxay bilaabeen inay sahamiyaan tignoolajiyada isgaarsiinta fiber optic-ga si wax ku ool ah.Fiber-mode-ka badan ayaa ahaa waxa ay inta badan wax ka bartaan.Iyada oo leh koofiyadaha fiber-ka weyn, muti-mode fiber-ka ayaa awood u leh in uu xaqiijiyo hal gudbinta fiber ee nalalka muti-qaabka.850nm hirarka dhererka ayaa ahaa kan marka hore la dabaqay.

O Waveband

Bilowgii 1990-meeyadii, fiber-ka-hal-qaab ayaa si ballaaran loo isticmaalay.

Sawirka 1

Saynis yahanadu waxay ogaadeen in 1260nm ~ 1360nm waveband light ay gaari karto khalkhalka ugu yar ee calaamada iyo khasaaraha gudbinta ee ay keento kala firdhisanaanta imtixaanada.Sidaas darteed, waxay u bixiyeen iftiinka waveband sida O-band iyo "O" waxay u taagan tahay "Original".Tijaabooyinka iyo khaladaadka, saynisyahannadu waxay ogaadeen in iftiinka leh 1260nm ~ 1625nm uu sidoo kale ku yaal aagga ugu yar ee khasaaraha waana iftiinka ugu habboon ee gudbinta fiber-ka.

1260nm~1625nm waveband light waxa loo qaybiyaa shan-O waveband, E waveband, S waveband, C waveband iyo L waveband.

Jaantuska 2

Saynis yahanadu waxay kaloo heleen xidhiidhka ka dhexeeya luminta gudbinta iyo hirarka dhererka.Waxay muujinaysaa sida soo socota.

Jaantuska 3

Qeybta ugu badan ee la isticmaalo waa C waveband ((1530nm ~ 1565nm), oo u taagan "caadi ah".C band waxay gaari kartaa khasaaraha ugu yar ee gudbinta kaas oo si weyn loogu dabaqo MAN, masaafada dheer, masaafada dheer ee aadka u dheer, nidaamyada fiilada indhaha ee badda hoosteeda iyo nidaamka WDM.

L Waveband (1565nm ~ 1625nm)

L waxay u taagan tahay "mawjada dheer".Waveband L waxay gaari kartaa khasaaraha labaad ee ugu yar ee gudbinta waxayna sidoo kale ka mid tahay doorashada ugu weyn ee warshadaha.Haddi C waveband uu awoodi waayo in uu daboolo baahiyaha xawaaladaha, dadku waxay caadi ahaan u qaadan doonaan L waveband si kaaba ah.

S Waveband (1460nm ~ 1530nm)

S waxay u taagan tahay "mawjada gaaban".Marka ay timaaddo luminta fiber-ka, way ka sarreysaa mawjadaha O.Badanaa waxaa lagu dabaqaa mawjadaha dhererka hoose ee PON.

E Waveband

Waa xadhigga ugu yar ee shanta nooc ee mawjadaha.E waxay u taagan tahay "kordhinta".Sida ka muuqata shaxanka 3, barar ayaa lagu arki karaa E waveband.Taasi waa sababta oo ah waxaa nuugay OH- taasoo horseedaysa luminta gudbinta weyn, taas oo sidoo kale loo yaqaanno ugu sarreysa biyaha.

Waagii hore, farsamada xaddidan awgeed, biyaha waxaa lagu qasi jiray galaas fiber optic ah taasoo keentay khasaaraha weyn ee gudbinta ee E waveband oo ay si caadi ah u shaqeyn weyday.Ka dib, dadku waxay horumariyeen tignoolajiyada fuuq-baxa samaynta dhalada, tan iyo markaas, luminta gudbinta ee E waveband ayaa xitaa ka hooseeya O waveband.Si kastaba ha ahaatee, khasaaraha gudbinta ayaa ku dhacay E waveband ee fiilada fiber-ka indhaha ee horay u dhigay taas oo sharraxaysa in weli ay jiraan xaddidaadyo loogu talagalay waveband E oo lagu dabaqo isgaarsiinta fiber optic.