Kev paub yooj yim lub koom haum ntawm optical fibers thiab cables

1. Piav qhia luv luv txog qhov muaj pes tsawg leeg ntawm optical fibers.
Teb: Fiber optic muaj ob lub hauv paus Cheebtsam: ib qho tseem ceeb thiab cladding ua los ntawm pob tshab optical cov ntaub ntawv, thiab txheej txheej.
Dab tsi yog qhov tseem ceeb tsis tau piav qhia txog kev sib kis ntawm cov kab hluav taws xob kho qhov muag?
Teb: Qhov no suav nrog kev poob, dispersion, bandwidth, cutoff wavelength, hom teb txoj kab uas hla, thiab lwm yam.
Dab tsi yog vim li cas rau fiber optic attenuation?
Teb: Qhov attenuation ntawm optical fibers yog hais txog qhov txo qis ntawm lub zog kho qhov muag ntawm ob ntu ntu ntawm fiber ntau, uas cuam tshuam nrog wavelength. Lub ntsiab yog vim li cas rau attenuation yog scattering, absorption, thiab optical poob los ntawm connectors thiab pob qij txha.
4. Yuav ua li cas kho qhov muag fiber ntau Attenuation coefficient?
Teb: txhais los ntawm attenuation ib chav tsev ntev ntawm ib tug uniform optical fiber nyob rau hauv khov kho-xeev (dB/km).
5. Dab tsi yog qhov poob ntawm qhov ntxig?
Teb: Nws yog hais txog qhov attenuation tshwm sim los ntawm kev ntxig ntawm cov khoom siv kho qhov muag (xws li cov khoom sib txuas lossis cov khoom sib txuas) hauv cov kab sib kis.
Dab tsi yog bandwidth ntawm optical fibers cuam tshuam nrog?
Teb: Qhov bandwidth ntawm fiber ntau yog hais txog qhov kev hloov pauv zaus thaum lub amplitude ntawm optical hwj chim txo los ntawm 50% los yog 3dB piv rau lub amplitude ntawm xoom zaus nyob rau hauv lub hloov pauv muaj nuj nqi ntawm lub fiber. Qhov bandwidth ntawm fiber ntau optical yog kwv yees li qhov sib npaug ntawm nws qhov ntev, thiab cov khoom ntawm qhov ntev bandwidth yog qhov tsis tu ncua.
7. Dab tsi yog qhov dispersion ntawm optical fibers? Nws cuam tshuam li cas?
Teb: Lub dispersion ntawm fiber yog hais txog kev nthuav dav ntawm pab pawg qeeb hauv fiber ntau, suav nrog hom dispersion, khoom dispersion thiab qauv dispersion. Nws nyob ntawm tus yam ntxwv ntawm ob qho tib si lub teeb ci thiab qhov muag fiber ntau.
Yuav piav qhia txog cov yam ntxwv dispersion ntawm cov teeb liab propagation hauv optical fibers li cas?
Teb: Nws tuaj yeem piav qhia los ntawm peb lub cev: pulse broadening, fiber bandwidth, thiab fiber dispersion coefficient.
9. Dab tsi yog qhov txiav tawm wavelength?
Teb: Nws yog hais txog qhov luv tshaj wavelength nyob rau hauv ib tug fiber ntau uas tsuas yog ua cov qauv siv. Rau ib hom fibers, lawv cutoff wavelength yuav tsum luv dua lub wavelength ntawm kis lub teeb.
10. Dab tsi yog qhov cuam tshuam ntawm fiber ntau dispersion ntawm kev ua haujlwm ntawm fiber optic kev sib txuas lus?
Teb: Lub dispersion ntawm optical fibers yuav ua rau optical pulses kom dav thaum kis tau tus mob nyob rau hauv fiber. Qhov loj ntawm qhov kev ua yuam kev, qhov kev ncua deb, thiab qhov system tus nqi raug cuam tshuam