Iimpawu ze-EDFA Optical Amplifier

Iimpawu zeIsandisi-lizwi se-EDFA Optical
Ubude bomda obusebenzayo be-EDFAIsandisi-lizwi sokubonaiphantsi ngokuchanekileyo kuluhlu oluphezulu lwamaza ombane lwe-1330-1600nm kunxibelelwano lwe-fiber optic. I-EDFA Optical Amplifier esebenza kwi-C-band (1530-1565nm) enefestile yokulahleka kwefayibha ephantsi isetyenzisiwe kakhulu. Ukuze kusetyenziswe ngokupheleleyo izixhobo ze-bandwidth zeefayibha ze-optical, abantu bazimisele ukuphuhlisa i-EDFA Optical Amplifier kwi-L-band (1570-1610nm). I-L-band ikwindawo engasemva kwe-EDFA amplifier gain spectrum, ngoko ke i-L-band EDFA Optical Amplifier kufuneka isebenzise iifayibha ezinde kunye namandla aphezulu epompo, okanye isebenzise iifayibha ezixineneyo kakhulu.
I-EDFA Optical Amplifier ine-gain ephezulu (engaphezulu kwe-30-50dB) kwaye inika i-flat gain phezu kwe-wide frequency band (ukuya kuthi ga kwi-30nm), nto leyo eyenza ifaneleke ukukhulisa imiqondiso kwiitshaneli ezininzi ze-optical, ingakumbi kwiinkqubo ze-dense wavelength division multiplexing (DWDM). Ingxolo ephantsi (4-8dB), isondela kumda we-quantum. Xa isetyenziswa kwiinkqubo ze-WDM, i-crosstalk phakathi kweetshaneli iyancitshiswa kwaye ii-amplifier ezininzi zinokutsalwa. Inamandla aphezulu okuphuma kwe-saturation (10-20 dBm), ingasetyenziswa njenge-power amplifier emva kwe-transmitter ukwandisa umgama wokudlulisela okanye inani elabelweyo lee-optical nodes ngaphandle kwemigca yokudlulisela. Amandla epompo afunekayo aphantsi (amashumi ee-milliwatts). I-gain ayixhomekekanga kwimeko ye-polarization yefayibha, ngoko ke inozinzo oluhle. Kulula ukuyidibanisa neefayibha ze-optical ze-transmission, kunye nokulahleka okuphantsi kwe-coupling (<1dB). Ngaphandle komthombo wepompo,Isandisi-lizwi se-EDFAyenziwe ngezinto ezingasebenziyo. Ke ngoko, xa kuthelekiswa nee-relay ze-elektroniki ezintsonkothileyo nezibizayo, iindleko zenkqubo ziyancipha kakhulu kwaye ukuthembeka kuyaphucuka. Ukongeza, iimpawu zokukhulisa ze-EDFA Amplifier azixhomekekanga kwisantya se-bit yenkqubo kunye nefomathi yedatha, ngoko ke inokukhulisa nokudlulisa ulwazi lwedijithali nolwe-analog.
Iingxaki ze-EDFA Optical Amplifier zezi: ubungakanani obukhulu; Ixesha lokusebenzisa umthombo wepompo alide; Ayinakudityaniswa nezinye izixhobo, nto leyo ethintela ukusetyenziswa kwe-EDFA Amplifier kwi-optoelectronic integration (OEIC). Ukongeza, i-gain bandwidth ye-EDFA Optical Amplifier igubungela kuphela inxalenye yefestile yokulahleka okuphantsi kwe-quartz single-mode fiber, ethintela inani leetshaneli ze-wavelength ezinokwamkelwa yi-fiber, nto leyo ekwayintsilelo yayo.