一,Umgaqo we-photoreceptor
Iumamkeli obonakalayoyinxalenye ebalulekileyo yenkqubo yonxibelelwano lwefiber optical.Umgaqo wayo osisiseko kukuguqula imiqondiso ye-optical ibe yimiqondiso yombane.Amacandelo aphambili e-optical receiver aquka i-photodetector, i-preamplifier kunye ne-postamplifier.Xa isignali ye-optical idluliselwa kwi-photodetector nge-fiber optical, i-photodetector iguqula isignali ye-optical ibe ngumqondiso wombane, kwaye emva koko isignali ikhuliswe kwaye ihluzwe nge-preamplifier, kwaye ekugqibeleni iqhutywe kwaye idluliselwe kwi-postamplifier.
二,Umsebenzi we-photoreceptor
1. Ukuguqulwa kwemiqondiso ye-optical kwimiqondiso yombane:Owona msebenzi usisiseko we-receiver optical kukuguqula imiqondiso ye-optical edlulisiweyo ibe yimiqondiso yombane ukuququzelela ukusetyenzwa komqondiso olandelayo kunye nokuhanjiswa.Oku kwenziwa kusetyenziswa i-photodetectors, efumanisa iimpawu zokukhanya ezibuthathaka kwaye ziguqulelwe kwiimpawu zombane.
2. Ukwandiswa komqondiso:Ekubeni ubukhulu besignali ye-optical buya kuncipha ngokuthe ngcembe ngexesha lenkqubo yokuhanjiswa kwe-fiber optical, ubuninzi besignali ye-optical inokuba buthathaka kakhulu xa ifikelela kummkeli we-optical.I-preamplifier kwi-optical receiver inokwandisa le miqondiso yombane ebuthathaka ukuze iqhutywe ngcono kwaye idluliselwe.
3. Uhluzo loMqondiso:Ngethuba lenkqubo yokuhanjiswa kwe-fiber optical, izandi ezahlukeneyo kunye nokuphazamiseka kunokungeniswa, okuya kuchaphazela umgangatho wesiginali.I-preamplifier kwi-optical receiver idla ngokuxhotyiswa ngesihluzo sokususa ezi ngxolo kunye nokuphazamiseka kunye nokuphucula umgangatho wesignali.
4. Ukwenziwa komqondiso:I-post-amplifier ingaqhubela phambili isignali yombane, njenge-decoding, i-demodulation, njl., ukwenzela ukuba ibuyiselwe kwi-digital digital okanye i-analog signal.Ukongezelela, ngokusebenzisa i-post-amplifier, umqondiso wombane unokuhlengahlengiswa kwaye ulungiswe, njengokulungelelanisa i-amplitude, i-frequency kunye nezinye iiparitha zesignali, ukwenzela ukuba ikwazi ukuhlangabezana neemfuno zeenkqubo zonxibelelwano ezilandelayo.
5. Iimpawu zombane eziphumayo:Iimpawu zombane ezicutshungulwayo zinokukhutshwa kwezinye izixhobo okanye iinkqubo zokufezekisa ukuhanjiswa kolwazi kunye nokwabelana.Ngokomzekelo, kwinkqubo yonxibelelwano ye-fiber optical, izibonakaliso zombane ezicutshungulwa ngummkeli obonakalayo ziyakwazi ukudluliselwa kwiikhomputha, iitshintshi okanye ezinye izixhobo zonxibelelwano.
三,Intshayelelo kwi-CEITATECH FTTH i-optical receiver
1.FTTH i-Optical Receiver(CT-2001C)Isishwankathelo
Le mveliso ngumamkeli obonakalayo we-FTTH.Yamkela itekhnoloji ye-AGC yokufumana amandla aphantsi kunye nolawulo lwamehlo ukuhlangabezana neemfuno zefiber-to-ekhaya.Sebenzisa igalelo lokudlala ngokuphindwe kathathu, lawula uzinzo lwesignali nge-AGC, kunye ne-WDM, i-1100-1620nm i-CATV yesiginali yokuguqulwa kwefoto yombane kunye nenkqubo ye-RF yentambo ye-TV ephumayo.
Imveliso ineempawu zesakhiwo esincinci, ukufakela okufanelekileyo kunye neendleko eziphantsi.Yimveliso efanelekileyo yokwakha intambo ye-TV ye-FTTH network.
FTTH i-Optical Receiver(CT-2001C)
l Iqokobhe leplastiki elikumgangatho ophezulu kunye nomgangatho olungileyo womlilo ophezulu.
l Ijelo le-RF epheleleyo ye-GaAs yesekethe yesandisi sesandi esiphantsi.Ubuncinci bokwamkelwa kwemiqondiso yedijithali yi-18dBm, kwaye ubuncinci bokwamkelwa kweempawu ze-analog yi-15dBm.
l Uluhlu lolawulo lwe-AGC luyi -2~ -14dBm, kwaye imveliso ayitshintshi.(Uluhlu lwe-AGC lunokwenziwa ngokwezifiso ngokuhambelana nomsebenzisi).
l Uyilo lokusetyenziswa kwamandla aphantsi, usebenzisa amandla aphezulu okutshintsha umbane ukuqinisekisa ukuthembeka okuphezulu kunye nokuzinza okuphezulu kobonelelo lwamandla.Ukusetyenziswa kwamandla omatshini wonke kungaphantsi kwe-3W, kunye nesekethe yokubona ukukhanya.
l I-WDM eyakhelwe-ngaphakathi, qonda ukungena kwefayibha enye (1100-1620nm) isicelo.
l I-SC / APC kunye ne-SC / UPC okanye i-FC / APC isinxibelelanisi sokukhanya, i-metric okanye intshi ye-RF ujongano olukhethiweyo.
l Imowudi yonikezelo lwamandla ye-12V DC yokungenisa izibuko.
1.1Umzobo weSchematic
2.FTTH i-Optical Receiver(CT-2002C)Isishwankathelo
Le mveliso i-FTTH i-optical receiver, isebenzisa i-low-power optical receiver kunye ne-optical control ye-AGC iteknoloji, enokuthi ihlangabezane neemfuno ze-fiber-to-the-home, kwaye ingasetyenziselwa kunye ne-ONU okanye i-EOC ukuphumeza umdlalo kathathu.Kukho i-WDM, i-1550nm ye-CATV yokuguqulwa kwe-photoelectric signal kunye ne-RF output, i-1490/1310 nm i-PON yesiginali idlula ngokuthe ngqo, enokuthi ihlangabezane ne-FTTH enye ye-fiber optical transmission CATV + EPON.
Imveliso ihlangene kwisakhiwo kwaye kulula ukuyifaka, kwaye iyimveliso efanelekileyo yokwakha inethiwekhi ye-TV ye-FTTH.
I-FTTH i-Optical Receiver(CT-2002C)
l Iqokobhe leplastiki elikumgangatho ophezulu kunye nomgangatho olungileyo womlilo ophezulu.
l Ijelo le-RF epheleleyo ye-GaAs yesekethe yesandisi sesandi esiphantsi.Ubuncinci bokwamkelwa kwemiqondiso yedijithali yi-18dBm, kwaye ubuncinci bokwamkelwa kweempawu ze-analog yi-15dBm.
l Uluhlu lolawulo lwe-AGC luyi-2~ -12dBm, kwaye imveliso ayitshintshi.(AGC
uluhlu lungenziwa ngokwezifiso ngokuhambelana nomsebenzisi).
l Uyilo lokusetyenziswa kwamandla aphantsi, usebenzisa amandla aphezulu okutshintsha umbane ukuqinisekisa ukuthembeka okuphezulu kunye nokuzinza okuphezulu kobonelelo lwamandla.Ukusetyenziswa kwamandla omatshini wonke kungaphantsi kwe-3W, kunye nesekethe yokubona ukukhanya.
l I-WDM eyakhelwe-ngaphakathi, qonda ukungena kwefayibha enye (1490/1310/1550nm) isicelo sokudlala kathathu.
l SC/APC okanye FC/APC isidibanisi optical, metric okanye intshi RF interface ozikhethelayo.
l Imowudi yonikezelo lwamandla ye-12V DC yokungenisa izibuko.
2.2Umzobo weSchematic
Ixesha lokuposa: Jan-13-2024
