Dispersion-hloov fiber ntau yog ib hom fiber ntau tsim nrog xoom dispersion hauv 1.55pm band. Txawm li cas los xij, cov nplaim hluav taws xob uas siv ntau thiab ntau qhov muaj qhov txawv ntawm qhov dispersion los ntawm 1.3Pm txog 1.55 teev, uas tuaj yeem ua qis heev, thiab cov fiber ntau uas ua tiav yuav luag xoom dispersion hu ua DFF. Vim tias DFF yuav tsum txo qis kev tawg tawm ntawm thaj tsam li ntawm 1.3 teev sawv ntxov txog 1.55 teev tsaus ntuj. Nws yog qhov tsim nyog los nqa tawm cov kev tsim cov nyom rau qhov ntsuas qhov yooj yim ntawm cov hluav taws xob fiber ntau. Txawm li cas los xij, hom fiber ntau no tau tsim nyog rau kab kev faib ua ke (wavelength division multiplexing) (WDM). Vim hais tias cov txheej txheem ntawm DFF fiber ntau qhov nyuaj, tus nqi yuav kim dua.
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