Cov yam ntxwv ntawm EDFA Optical Amplifier

Cov yam ntxwv ntawmEDFA Optical Amplifier
Lub wavelength ua haujlwm ntawm EDFALub Tshuab Nqus Teeb Pom Kev Zoopoob meej meej hauv qhov ntau ntawm wavelength zoo tshaj plaws ntawm 1330-1600nm rau kev sib txuas lus fiber optic. EDFA Optical Amplifier ua haujlwm hauv C-band (1530-1565nm) nrog lub qhov rais poob fiber qis tshaj plaws tau siv dav. Txhawm rau kom siv tag nrho cov peev txheej bandwidth ntawm cov fibers optical, tib neeg kuj tau cog lus los tsim EDFA Optical Amplifier hauv L-band (1570-1610nm). L-band nyob ntawm tus Tsov tus tw ntawm EDFA amplifier nce spectrum, yog li L-band EDFA Optical Amplifier yuav tsum siv cov fibers ntev dua thiab lub zog twj tso kua mis siab dua, lossis siv cov fibers doped heev.
EDFA Optical Amplifier muaj qhov nce siab (ntau dua 30-50dB) thiab muab qhov nce tiaj tiaj hla lub zaus dav (txog li 30nm), ua rau nws tsim nyog rau kev ua kom cov teeb liab hauv ntau lub channel optical, tshwj xeeb tshaj yog hauv cov kab ke sib cais wavelength (DWDM). Suab qis (4-8dB), mus txog qhov txwv quantum. Thaum siv rau WDM systems, qhov crosstalk ntawm cov channel raug txo qis thiab ntau lub amplifiers tuaj yeem cascaded. Muaj lub zog tso zis siab (10-20 dBm), nws tuaj yeem siv ua lub zog amplifier tom qab lub transmitter kom nce qhov kev sib kis lossis faib tus lej ntawm cov nodes optical tsis muaj kab relay. Lub zog twj tso kua mis xav tau yog qis (kaum tawm milliwatts). Qhov nce yog ywj pheej ntawm lub xeev polarization ntawm cov fiber, yog li nws muaj kev ruaj khov zoo. Yooj yim rau kev sib txuas nrog cov fibers kis tau tus mob, nrog kev poob qis (<1dB). Tsuas yog lub twj tso kua mis qhov chaw,EDFA Amplifieryog tsim los ntawm cov khoom siv tsis siv neeg. Yog li ntawd, piv nrog cov khoom siv hluav taws xob rov ua dua tshiab uas nyuaj thiab kim, tus nqi ntawm lub kaw lus raug txo qis thiab kev ntseeg tau zoo dua. Tsis tas li ntawd, cov yam ntxwv ntawm EDFA Amplifier yog ywj pheej ntawm qhov system bit rate thiab hom ntawv cov ntaub ntawv, yog li nws tuaj yeem ua kom nrov thiab xa cov ntaub ntawv digital thiab analog.
Qhov tsis zoo ntawm EDFA Optical Amplifier yog: loj; Lub neej ntawm lub twj tso kua mis tsis ntev; Nws tsis tuaj yeem koom ua ke nrog lwm cov khoom siv, uas txwv tsis pub siv EDFA Amplifier hauv kev koom ua ke optoelectronic (OEIC). Tsis tas li ntawd, qhov nce bandwidth ntawm EDFA Optical Amplifier tsuas yog npog ib feem ntawm lub qhov rais poob qis ntawm quartz ib hom fiber, uas txwv tus lej ntawm cov channel wavelength uas lub fiber tuaj yeem haum, uas kuj yog nws qhov tsis zoo.