一,Isimiso se-photoreceptor
Iumamukeli obonakalayoiyingxenye ebalulekile yesistimu yokuxhumana ye-fiber optical.Umgomo wayo oyisisekelo ukuguqula amasignali optical abe amasignali kagesi.Izingxenye eziyinhloko zesamukeli se-optical zihlanganisa i-photodetector, i-preamplifier kanye ne-postamplifier.Lapho isignali ye-optical idluliselwa ku-photodetector nge-fiber optical, i-photodetector iguqula isignali ye-optical ibe isignali kagesi, bese isignali ikhuliswa futhi ihlungwe nge-preamplifier, futhi ekugcineni icutshungulwe futhi idluliselwe nge-postamplifier.
二,Umsebenzi we-photoreceptor
1. Ukuguqulwa kwamasignali okukhanya abe amasignali kagesi:Umsebenzi oyisisekelo kakhulu wesamukeli se-optical ukuguqula amasignali optical adluliselwe abe amasignali kagesi ukuze kube lula ukucutshungulwa kwesignali nokudluliswa.Lokhu kwenziwa kusetshenziswa ama-photodetectors, athola amasignali okukhanya abuthakathaka futhi awaguqule abe amasignali kagesi.
2. Ukukhulisa isignali:Njengoba ukushuba kwesignali ye-optical kuzoncipha kancane kancane phakathi nenqubo yokudlulisa i-fiber optical, ukuqina kwesignali ye-optical kungase kube buthaka kakhulu lapho ifika kumamukeli optical.I-preamplifier kumamukeli obonakalayo ingakhulisa lezi zimpawu zikagesi ezibuthakathaka ukuze zicutshungulwe kangcono futhi zidluliselwe.
3. Ukuhlunga isignali:Phakathi nenqubo yokudlulisa i-fiber optical, imisindo ehlukahlukene kanye nokuphazamiseka kungase kwethulwe, okuzothinta ikhwalithi yesiginali.I-preamplifier kumamukeli obonakalayo ngokuvamile ifakwe isihlungi ukuze isuse le misindo nokuphazamiseka futhi ithuthukise ikhwalithi yesiginali.
4. Ukucutshungulwa kwesignali:I-post-amplifier ingaqhubeka nokucubungula isignali kagesi, njengokukhipha amakhodi, ukudiliza, njll., ukuze ibuyiselwe kusiginali yangempela yedijithali noma ye-analog.Ngaphezu kwalokho, ngokusebenzisa i-post-amplifier, isignali kagesi ingabuye ilungiswe futhi yenziwe kahle, njengokulungisa i-amplitude, imvamisa kanye neminye imingcele yesiginali, ukuze ikwazi ukuhlangabezana nezidingo zezinhlelo zokuxhumana ezilandelayo.
5. Izimpawu zikagesi eziphumayo:Izimpawu zikagesi ezicutshunguliwe zingakhishelwa kwamanye amadivaysi noma amasistimu ukuze kuzuzwe ukudluliswa kolwazi nokwabelana.Isibonelo, ohlelweni lokuxhumana lwe-fiber optical, amasignali kagesi acutshungulwa yisamukeli se-optical angadluliselwa kumakhompyutha, amaswishi noma ezinye izinto zokuxhumana.
三,Isingeniso se-CEITATECH FTTH isamukeli esibonakalayo
I-1.FTTH Optical Receiver(CT-2001C)Uhlolojikelele
Lo mkhiqizo uyisamukeli sokubonakalayo se-FTTH.Isebenzisa ubuchwepheshe be-AGC obunamandla obuncane bokwamukela nokulawula ukubona ukuze kuhlangatshezwane nezidingo ze-fiber-to-the-home.Sebenzisa okokufaka kokubuka kathathu kokudlala, lawula ukuzinza kwesignali nge-AGC, nge-WDM, 1100-1620nm CATV isignali yokuguqulwa kwesithombe sikagesi kanye nohlelo lwe-TV yekhebula ephumayo ye-RF.
Umkhiqizo unezici zesakhiwo esihlangene, ukufakwa okulula kanye nezindleko eziphansi.Kungumkhiqizo okahle wokwakha inethiwekhi ye-cable TV FTTH.
I-FTTH Optical Receiver(CT-2001C)
l Igobolondo lepulasitiki lekhwalithi ephezulu elinesilinganiso esihle somlilo.
l Isiteshi se-RF esigcwele isekethe ye-GaAs yomsindo ophansi.Ukwamukela okuncane kwamasignali edijithali ngu-18dBm, futhi ukwamukelwa okuncane kwamasignali e-analog ngu -15dBm.
l Ibanga lokulawula le-AGC lingu-2~ -14dBm, futhi okukhiphayo empeleni akushintshile.(Ibanga le-AGC lingenziwa ngokwezifiso ngokusho komsebenzisi).
l Idizayini yokusetshenziswa kwamandla okuphansi, kusetshenziswa amandla aphezulu okushintsha amandla ukuze kuqinisekiswe ukwethembeka okuphezulu nokuzinza okuphezulu kokunikezwa kwamandla.Amandla asetshenziswa umshini wonke angaphansi kuka-3W, nesifunda sokuthola ukukhanya.
l I-WDM eyakhelwe ngaphakathi, qaphela uhlelo lokusebenza lokungena kwefayibha eyodwa (1100-1620nm).
l I-SC/APC ne-SC/UPC noma i-FC/APC isixhumi esibonakalayo, i-metric noma intshi yesixhumi esibonakalayo se-RF ngokuzithandela.
l Imodi yokuphakela amandla yembobo yokufaka engu-12V DC.
1.1Umdwebo wohlelo
I-2.FTTH Optical Receiver(CT-2002C)Uhlolojikelele
Lo mkhiqizo uyisamukeli sokubona se-FTTH, sisebenzisa ubuchwepheshe be-AGC bokwamukela ukukhanya kwamandla aphansi kanye nokulawula ukubona, obungakwazi ukuhlangabezana nezidingo ze-fiber-to-the-home, futhi ungasetshenziswa ngokuhambisana ne-ONU noma i-EOC ukuze uzuze ukudlala kathathu.Kukhona i-WDM, i-1550nm CATV isignali yokuguqulwa kwesithombe sikagesi kanye nokuphumayo kwe-RF, isignali ye-PON engu-1490/1310 nm edlula ngokuqondile, engahlangabezana ne-FTTH eyodwa yokudluliswa kwe-fiber optical CATV+EPON.
Umkhiqizo uhlangene ngesakhiwo futhi kulula ukuwufaka, futhi ungumkhiqizo okahle wokwakha inethiwekhi yentambo ye-TV ye-FTTH.
I-FTTH Optical Receiver(CT-2002C)
l Igobolondo lepulasitiki lekhwalithi ephezulu elinesilinganiso esihle somlilo.
l Isiteshi se-RF esigcwele isekethe ye-GaAs yomsindo ophansi.Ukwamukela okuncane kwamasignali edijithali ngu-18dBm, futhi ukwamukelwa okuncane kwamasignali e-analog ngu -15dBm.
l Ibanga lokulawula le-AGC lingu-2~ -12dBm, futhi okukhiphayo empeleni akushintshile.(AGC
ububanzi bungenziwa ngokwezifiso ngokusho komsebenzisi).
l Idizayini yokusetshenziswa kwamandla okuphansi, kusetshenziswa amandla aphezulu okushintsha amandla ukuze kuqinisekiswe ukwethembeka okuphezulu nokuzinza okuphezulu kokunikezwa kwamandla.Amandla asetshenziswa umshini wonke angaphansi kuka-3W, nesifunda sokuthola ukukhanya.
l I-WDM eyakhelwe ngaphakathi, thola ukungena kwe-fiber eyodwa (1490/1310/1550nm) uhlelo lokusebenza lokudlala kathathu.
l SC/APC noma FC/APC isixhumi esibonakalayo, i-metric noma intshi yesixhumi esibonakalayo se-RF ngokuzithandela.
l Imodi yokuphakela amandla yembobo yokufaka engu-12V DC.
2.2Umdwebo wohlelo
Isikhathi sokuthumela: Jan-13-2024
