1. Piav qhia luv luv txog cov khoom sib xyaw ntawm cov fibers kho qhov muag.
A: Ib qho fiber ntau optical muaj ob qhov tseem ceeb: lub hauv paus thiab cladding ua los ntawm cov khoom siv optical pob tshab thiab txheej.
2. Cov yam ntxwv yooj yim uas piav qhia txog cov yam ntxwv ntawm cov kab fiber optic yog dab tsi?
A: Xws li kev poob, kev tawg, bandwidth, cutoff wavelength, modal field diameter, thiab lwm yam.
3. Ua rau muaj kev txo qis ntawm cov fiber ntau yog dab tsi?
Lus Teb: Kev txo qis ntawm cov fiber ntau yog hais txog kev txo qis ntawm lub zog kho qhov muag ntawm ob ntu ntawm cov fiber, uas muaj feem cuam tshuam nrog wavelength. Cov laj thawj tseem ceeb ntawm kev txo qis yog kev tawg, kev nqus, thiab kev poob ntawm cov khoom siv kho qhov muag vim yog cov khoom sib txuas thiab cov khoom sib txuas.
4. Cov coefficient ntawm fiber attenuation txhais li cas?
Lus Teb: Txhais los ntawm qhov attenuation (dB / km) ib chav ntev ntawm ib qho fiber sib xws hauv lub xeev ruaj khov.
5. Kev poob ntawm kev ntxig yog dab tsi?
Lus Teb: Nws hais txog qhov kev txo qis los ntawm kev ntxig cov khoom siv kho qhov muag (xws li kev ntxig cov khoom sib txuas lossis cov khoom sib txuas) rau hauv kab kis tau teeb pom kev zoo.
6. Bandwidth muaj feem cuam tshuam li cas? cov khoom siv fiber optic?
Lus Teb: Fiber bandwidth yog hais txog qhov zaus hloov kho thaum lub zog kho qhov muag amplitude yog 50% lossis 3 dB qis dua qhov zaus xoom hauv lub luag haujlwm hloov pauv ntawm fiber. Lub bandwidth ntawm cov fiber kho qhov muag yog kwv yees li inversely proportional rau nws qhov ntev, thiab cov khoom ntawm qhov ntev thiab bandwidth yog qhov tsis hloov pauv.
Lub sijhawm tshaj tawm: Lub Yim Hli-26-2022
