Vim li cas kuv thiaj xav tau DCM hauv DWDM txuas?
Dispersion yog fiber ntau raws li lub cev cov nyhuv uas kis tau tus pulse optical thaum nws mus rau hauv lub optical fiber. Qhov no efcet ua rau lub teeb liab tsis zoo thiab yog li txwv qhov kev ncua deb tshaj plaws uas koj tuaj yeem ua tiav nrog koj qhov system kho qhov muag. Txhawm rau tiv thaiv qhov efef ct, DCM (Dispersion Compensation Modules) feem ntau yog siv los them cov chromatic dispersion ntawm kev sib kis fiber ntau.
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