Cov fiber ntau kho qhov muag tau tsim los ntawm cov tub ntxhais, txheej txheej txheej, thiab txheej txheej ua los ntawm cov ntaub ntawv kho qhov muag. Qhov tsis yooj yim ntawm cov kab hluav taws xob xa hluav taws xob cov yam ntxwv sib xws suav nrog poob, tawg, bandwidth, txiav tawm nthwv dej, hom kab taub, thiab lwm yam.
Piv nrog cov tooj liab tooj liab zoo ib yam, cov kab hluav taws xob kho qhov muag muaj qhov zoo dua ntawm kev ua haujlwm tau zoo, tab sis cov kab hluav taws xob kho qhov muag kuj tsim qhov ua kom pom tseeb, tab sis qhov txo qis qis dua. Qhov ua kom pom tseeb ntawm qhov kho qhov muag fiber yog hais txog qhov txo qis hauv lub zog kho qhov muag tsim los ntawm kev xa cov teeb liab kho qhov muag nruab nrab ntawm ob ntu ntu ntu kev kho qhov muag sib txuas hauv tib qhov kho qhov muag fiber. Cov qib ntawm kev ua kom pom tseeb ntawm cov kho qhov muag fiber cuam tshuam nrog lub nthwv dej. Lub hauv paus tseem ceeb ntawm kev txo qis suav nrog kev tawg, kev nqus, thiab qhov muag poob vim qhov txuas thiab pob qij txha.
Qhov txo qis coefficient ntawm fiber ntau kho qhov muag tau txhais los ntawm qhov ua kom pom tseeb (dB/km) ib chav ntev ntawm cov teeb pom kev zoo sib xws hauv lub xeev khov kho. Qhov kev poob qis hauv qhov kho qhov muag fiber ntau hais txog qhov ua kom qis los ntawm kev nkag mus rau cov khoom siv kho qhov muag (xws li cov txuas txuas lossis txuas txuas) hauv kab txuas kho qhov muag. Cov kab hluav taws xob kho qhov muag bandwidth yog qhov hloov pauv zaus thaum lub zog kho qhov muag dav yog 50% lossis 3dB qis dua qhov xoom ntau zaus hauv kev hloov pauv ntawm cov fiber ntau. Cov bandwidth ntawm cov fiber ntau kho qhov muag yog kwv yees li sib piv sib npaug rau nws qhov ntev, thiab cov khoom lag luam ntawm bandwidth ntev yog qhov tas li.
Muaj ntau hom kev kho qhov muag fiber ntau tshwm sim tshwm sim, suav nrog chromatic dispersion, cov khoom tawg, thiab cov txheej txheem tawg. Kev faib tawm cov fiber ntau hais txog kev nthuav dav ntawm pab pawg ncua hauv kev kho qhov muag fiber, uas tau txiav txim siab los ntawm cov yam ntxwv ntawm lub teeb pom kev thiab cov kho qhov muag fiber. Cov yam ntxwv ntawm kev faib tawm ntawm lub teeb liab nthuav tawm hauv cov fiber ntau kho qhov muag tuaj yeem piav qhia los ntawm peb lub cev ntau npaum li cas: mem tes nthuav dav, kho qhov muag fiber bandwidth, thiab kho qhov muag fiber ntau faib coefficient.
Kev txiav tawm nthwv dej ntawm cov fiber ntau kho qhov muag hais txog qhov nthwv dej luv tshaj plaws uas tuaj yeem tsuas yog xa cov qauv tseem ceeb hauv cov fiber. Rau ib hom fiber ntau, nws qhov txiav tawm nthwv dej yuav tsum luv dua li lub nthwv dej ntawm lub teeb xa mus. Kev faib tawm ntawm cov fiber ntau kho qhov muag yuav muaj qee yam cuam tshuam rau cov txheej txheem kev sib txuas lus fiber ntau, suav nrog kev nthuav dav ntawm cov mem tes kho qhov muag thaum cov txheej txheem xa mus hauv cov kho qhov muag fiber. Cuam tshuam rau qhov loj me ntawm qhov ua yuam kev me me, qhov ntev ntawm kev sib kis nrug deb, thiab qhov loj ntawm qhov system.
Txoj kev thim rov qab yog hais txog txoj hauv kev ntsuas qhov ua kom pom tseeb raws qhov ntev ntawm qhov kho qhov muag fiber. Feem ntau ntawm cov khoom siv kho qhov muag hauv cov kho qhov muag fiber nthuav tawm hauv cov lus qhia ua ntej, tab sis ib feem me me tau tawg rov qab mus rau lub teeb pom kev zoo. Siv lub tshuab tsom iav kom pom lub sijhawm nkhaus ntawm nraub qaum ntawm lub teeb pom kev zoo. Los ntawm ib qhov kawg, tsis tsuas yog tuaj yeem ua qhov ntev thiab ua kom pom tseeb ntawm cov khoom siv fiber ntau sib txuas, tab sis kuj tseem muaj qhov tsis xws luag hauv ib puag ncig, cov chaw tawg, thiab cov pob qij txha thiab cov khoom sib txuas los ntawm nws tuaj yeem ntsuas tau. Tsis pom kev poob hwj chim.
