Igama elipheleleyo lemodyuli ye-optical yii-transceiver yamehlo, esisisixhobo esibalulekileyo kwinkqubo yonxibelelwano lwefiber optical. Inoxanduva lokuguqula uphawu olufunyenweyo lwe-optical kwisignali yombane, okanye ukuguqula igalelo lombane lombane kwi-stable optical signal kwizinga elihambelanayo.
Iimodyuli yokubona yenziwe ngezixhobo ze-optoelectronic, iisekethe ezisebenzayo kunye ne-optical interfaces. Izixhobo ze-optoelectronic ziquka iinxalenye ezimbini: ukuhambisa (TOSA) kunye nokufumana (ROSA).
Iiparamitha eziphambili zezobugcisa zemodyuli ye-optical zibandakanya amandla optical transmitted, umlinganiselo wokuphela, ukufumana uvakalelo, kunye namandla optical agcweleyo.
1. I-avareji yokuhanjiswa kwamandla optical ibhekisela kwi-arithmetic mean yamandla optical xa i-logic yesignali i-1 kunye namandla optical xa i-0.
2. I-extinction ratio ibhekiselele kumlinganiselo we-avareji ye-avareji ye-optical power transmitted yazo zonke iikhowudi ze-"1" ukuya kumndilili wamandla optical transmitted azo zonke iikhowudi "0". Iya kuchaphazela uvakalelo lokufumana. Umlinganiselo wokuphela kufuneka ulawulwe phakathi koluhlu olufanelekileyo. Umlinganiselo omkhulu wokutshabalala unceda ekwehliseni isohlwayo saMandla, kodwa inkulu kakhulu iya konyusa ipateni enxulumene nejita yelaser.
3. Ukufumana ubuntununtunu kubhekiselele kumda omncinci wokuba isiphelo sokufumana singafumana umqondiso. Xa amandla omqondiso wesiphelo sokufumana ungaphantsi komgangatho wokufumana uvakalelo, isiphelo sokufumana asiyi kufumana nayiphi na idatha.
4. Ixabiso le-saturated optical power value libhekisela kumandla aphezulu abonakalayo abonakalayo ekupheleni kokufumana imodyuli ye-optical, ngokubanzi -3dBm. Xa amandla optical afunyenweyo emakhulu kunamandla optical agcweleyo, iimpazamo ezincinci ziyakwenziwa. Ngoko ke, ukuba imodyuli ye-optical enamandla okudlulisa amandla aphezulu ivavanywa ngaphandle kokunciphisa kunye ne-loopback, iimpazamo ezincinci ziya kwenzeka.
