Lub ntsiab sib txawv: lub amplification mechanism yog txawv.
EDFAsiv lub hauv paus ntsiab lus ntawm kev txhawb zog hluav taws xob ntawm EDF fiber ntau los ua kom pom cov teeb liab kho qhov muag, thiabRaman amplificationsiv cov nyhuv Raman kom paub txog lub zog hloov dua siab tshiab thiab nthuav dav cov teeb liab kho qhov muag.
Tsis tas li ntawd, edfa amplification bandwidth yog txwv (nyob ib ncig ntawm 1550nm), thiab Raman amplification muaj peev xwm theoretically amplify tag nrho cov bands.
Qhov nruab nrab ntawm Raman amplification txais kev sib kis zoo tib yam fiber ntau thiab tsis xav tau qhov nruab nrab nce ntxiv. Raws li kev khiav hauj lwm sib txawv, nws muab faib ua amplification (cov nyhuv amplification tshwm sim nyob rau hauv kaum kilometers ntawm fiber) thiab centralized amplification (cov nyhuv amplification tshwm sim nyob rau hauv ob peb kilometers). fiber ntau optic).
Raman amplification tuaj yeem ua tiav lub suab nrov qis, uas zoo dua li EDFA, tab sis qhov kev nthuav dav nce qis dua EDFA (kwv yees li 3 ~ 15db), thiab yuav tsum muaj lub teeb ci siab dua (watt theem)
Ob lub EDFA thiab Raman amplifiers muaj qhov nce siab, tsis tshua muaj suab nrov thiab lub zog tso zis siab. Cov lus hauv qab no teev qhov sib txawv ntawm ob hom:
