1. Cov zaus ntawm cov kab hluav taws xob yog qhov dav heev, raws li kev xav txog 3 billion megahertz.
Siv cov kev sib txuas ntawm kev sib txuas lus kho qhov muag kom zoo, 2000 tus kws kho qhov muag tau tuaj yeem npaj tau ntawm thaj tsam ntawm 30000 GHz rau kev faib ua ntu ntev ntev, uas tuaj yeem ua raws ntau lab.
2. Tsis cuam tshuam ntev ntawm kaum txog 100 mais, thaum lub xaim tooj liab hlau (cov ntaub ntawv kab) tsuas yog ob peb puas meters.
Tam sim no, cov tswv yim optical optical txhua tus siv cov-purity quartz (SiO2) cov ntaub ntawv, thiab attenuation yuav raug txo kom 0.2dB / KM ze rau qhov kho qhov muag wavelength ntawm 1550nm, uas yog ze rau qhov theoretical txwv. Yog li ntawd, nws qhov kev cuam tshuam deb tuaj yeem ua tau deb heev.
3. Lub vev xaib hluav taws xob tsis cuam tshuam los ntawm hluav taws xob thiab hluav taws xob, uas yog, tsis muaj kev cuam tshuam.
Optical fiber yog qhov khoom siv tsis yog xim hlau dielectric. Nws qhov pib tivthaiv yog quartz (SiO2), uas tsuas yog xa tawm lub teeb, tsis yog kev coj tus cwjpwm, thiab tsis cuam tshuam rau ntawm hluav taws xob teb. Lub teeb liab kis tau kis hauv nws tsis cuam tshuam los ntawm hluav taws xob teb.
4. Lub teeb yuag thiab loj me.
Vim tias cov iav fiber ntau yog qhov nyias nyias, ntxiv rau txheej txheej dej tsis ua haujlwm, ntxiv dag zog, hnab riam, thiab lwm yam, cov kab hluav taws xob cov kab hluav taws xob yog 4 mus rau 48 optical fibers tsawg dua 13 hli, uas yog me dua li ntawm txoj kab uas hla ntawm cov coaxial cable. ntawm 47 hli, thiab cov khoom siv kho qhov muag yog iav Cov fiber muaj lub zog nqus tshwj xeeb, kom nws muaj cov yam ntxwv ntawm lub taub me thiab lub teeb yuag, thiab lub installation tau yooj yim heev.
5. Kev sib txuas lus fiber ntau kis tsis yog nyob, muaj kev nyab xeeb rau siv, poob qis, tuaj yeem siv rau hauv qhov chaw tawg thiab qhov chaw txaus ntshai.
Optical fiber kis poob kis tseem muaj ob yam ntxwv. Ua ntej, nws muaj qhov poob hauv txhua qhov TV cable. Nws tsis tas yuav tsum muaj qhov sib npaug los ntawm kev muab vaj huam sib luag zoo li cov kab hluav taws xob. Thib ob, nws lub zog poob pauv nrog qhov kub thiab txias, yog li tsis tas yuav txhawj xeeb txog ib puag ncig. Kev hloov kub hloov pauv ua rau qhov hloov txawv txav ntawm cov qib tseem ceeb.
6. Qhov ntsuas kub ntawm thaj chaw siv yog dav, tsis tshua muaj kev cuam tshuam los ntawm ib puag ncig.
Vim hais tias qhov ploj thaum lub sij hawm xa xov fiber ntau hloov pauv nrog qhov kub thiab txias, tsis tas yuav txhawj xeeb txog kev hloov pauv hauv cov theem teeb liab vim muaj kev hloov pauv ntawm qhov kub hloov pauv.
7. Tshuaj muaj zog muaj zog thiab cov kev pab lub neej ntev.
Cov khoom siv ntawm cov khoom siv kho qhov muag nws tus kheej yog quartz (SiO2), thiab cov khoom ntim sab nraud yog feem ntau tshwj xeeb engineering yas, uas muaj qhov tsis tshua muaj tshuaj tiv thaiv corrosion, yog li nws muaj qhov muaj zog yoog nyob ib puag ncig thiab muaj cov yam ntxwv ntawm acid thiab alkali tsis kam.
8. Nws muaj qhov zais qhov tseeb thiab yuav tsis qhia tawm cov ntaub ntawv lossis cov ntaub ntawv rhiab.
Vim tias qhov kho qhov muag fiber tsuas xa tawm ntawm lub teeb, tsis muaj kev coj ua, thiab tsis cuam tshuam los ntawm lub xov hluav taws xob, nws muaj qhov muaj zog tiv taus. Vim tias qhov no, lub teeb liab kis hauv cov hluav taws xob kho qhov muag tsis yog yooj yim rau eavesdropped, uas yog qhov zoo rau kev zais cia.
