Dab tsi yog attenuation coefficient hauv optical Fiber?
Dab tsi yog attenuation coefficient hauv optical Fiber?

Video: Dab tsi yog attenuation coefficient hauv optical Fiber?

Video: Dab tsi yog attenuation coefficient hauv optical Fiber?
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Cov attenuation ntawm ib optical fiber ntau ntsuas tus nqi ntawm lub teeb poob ntawm cov tswv yim thiab cov zis. Tag nrho attenuation yog qhov sum ntawm tag nrho cov poob. Kho qhov muag losses a fiber ntau feem ntau yog qhia nyob rau hauv decibels ib kilometer (dB/km). Qhov nthuav qhia hu ua fiber ntau attenuation coefficient α thiab kev qhia yog.

Ib yam li ntawd, nws yog nug, dab tsi ua rau attenuation hauv optical fiber?

Cov attenuation ntawm optical fiber ntau yog qhov tshwm sim ntawm ob yam, nqus thiab tawg. Qhov nqus yog ua rau los ntawm kev nqus ntawm lub teeb thiab hloov mus rau cua sov los ntawm molecules hauv iav. Qhov loj tshaj ua rau ntawm attenuation yog tawg.

Ib tug kuj yuav nug, attenuation txhais li cas? Attenuation yog ib lo lus dav dav uas hais txog kev txo qis ntawm lub zog ntawm lub teeb liab. Attenuation tshwm sim nrog txhua hom teeb liab, txawm tias digital lossis analog. Qee lub sij hawm hu ua poob, attenuation yog ib qho tshwm sim ntawm lub teeb liab kis mus rau qhov ntev.

Tom qab ntawd, lo lus nug yog, yuav ua li cas ntsuas qhov attenuation hauv fiber ntau optic?

Kev Ntsuas Fiber Optical . Attenuation yog qhov poob ntawm kho qhov muag lub zog los ntawm kev nqus, tawg, khoov, thiab lwm yam kev poob thaum lub teeb mus los ntawm lub fiber ntau . Tag nrho attenuation A ntawm ob lub ntsiab lus tsis txaus ntseeg X thiab Y ntawm tus fiber ntau yog A(dB) = 10 log10 (Px/Py). Px yog lub zog tso tawm ntawm point X.

Qhov twg zaus hauv Fiber yog qhov attenuation ntawm nws qis tshaj?

Cov qis tshaj poob tshwm sim ntawm 1550-nm wavelength, uas feem ntau siv rau kev xa mus ntev.

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