Izici zeI-EDFA Optical Amplifier
Ububanzi bokusebenza kwe-EDFAI-Amplifier YokukhanyaIwela ngaphakathi kwebanga elifanele kakhulu lamaza okukhanya angu-1330-1600nm lokuxhumana kwe-fiber optic. I-EDFA Optical Amplifier esebenza ku-C-band (1530-1565nm) enefasitela lokulahlekelwa yi-fiber eliphansi kakhulu isetshenziswe kabanzi. Ukuze kusetshenziswe ngokugcwele izinsiza ze-bandwidth ze-fiber optical, abantu bazimisele futhi ekuthuthukiseni i-EDFA Optical Amplifier ku-L-band (1570-1610nm). I-L-band itholakala emsileni we-EDFA amplifier gain spectrum, ngakho-ke i-L-band EDFA Optical Amplifier kumele isebenzise izintambo ezinde namandla aphezulu ephampu, noma isebenzise izintambo ezifakwe kakhulu.
I-EDFA Optical Amplifier ine-gain ephezulu (engaphezu kuka-30-50dB) futhi inikeza i-flat gain phezu kwe-wide frequency band (kufika ku-30nm), okwenza ifanelekele ukukhulisa amasignali eziteshini eziningi ze-optical, ikakhulukazi ezinhlelweni ze-dense wavelength division multiplexing (DWDM). Umsindo ophansi (4-8dB), osondela emkhawulweni we-quantum. Uma isetshenziswa ezinhlelweni ze-WDM, i-crosstalk phakathi kweziteshi iyancishiswa futhi ama-amplifier amaningi angasuswa. Njengoba inamandla aphezulu okukhipha ukugcwala (10-20 dBm), ingasetshenziswa njenge-power amplifier ngemuva kwe-transmitter ukwandisa ibanga lokudlulisa noma inani elibekiwe lama-optical nodes ngaphandle kwemigqa yokudlulisela. Amandla epompo adingekayo aphansi (amashumi ama-milliwatts). I-gain ayixhomekile esimweni se-polarization se-fiber, ngakho-ke inokuqina okuhle. Kulula ukuyihlanganisa ne-transmission optical fibers, ngokulahlekelwa okuphansi kokuxhuma (<1dB). Ngaphandle komthombo wepompo,Isikhulisi se-EDFAyakhiwe yizingxenye ezingasebenzi. Ngakho-ke, uma kuqhathaniswa nama-relay okuvuselela kagesi ayinkimbinkimbi futhi abizayo, izindleko zesistimu zincishisiwe kakhulu futhi ukuthembeka kuyathuthuka. Ngaphezu kwalokho, izici zokukhulisa ze-EDFA Amplifier azincikile kwisilinganiso se-bit yesistimu kanye nefomethi yedatha, ngakho-ke ingakhulisa futhi idlulise kokubili ulwazi lwedijithali nolwe-analog.
Ububi be-EDFA Optical Amplifier yilezi: usayizi omkhulu; Isikhathi sokuphila komthombo wephampu asiside; Ayikwazi ukuhlanganiswa namanye amadivayisi, okunciphisa ukusetshenziswa kwe-EDFA Amplifier ekuhlanganisweni kwe-optoelectronic (OEIC). Ngaphezu kwalokho, i-gain bandwidth ye-EDFA Optical Amplifier ihlanganisa kuphela ingxenye yefasitela lokulahlekelwa eliphansi le-quartz single-mode fiber, enciphisa inani leziteshi zamaza obubanzi ezingafakwa yi-fiber, okuphinde kube ukushiyeka kwayo.
Isikhathi sokuthunyelwe: Juni-16-2026