Yimiphi imishini edingekayo ekukhiqizweni nasekuhlolweni kwamamojula e-optical angu-800G?
Ukuhlolwa kwe-800Gamamojula okukhanyakufaka phakathi ukuhlolwa kokusebenza kokwamukela kanye nokuhlolwa kokusebenza kokudlulisa. Uhlu oluyinhloko lwemishini kanye ne-logic yile elandelayo:
1, imishini yokuhlola
Ibhodi yenkampani yenethiwekhi engu-1.1MCB
Lungiselela amabhodi amabili enkampani ye-MCB ukuze ubeke imojuli ye-DUT kanye nemojuli ejwayelekile ngokulandelana. Imojuli ye-optical ifakwa ebhodini lenkampani ye-carrier futhi ixhunywe kumitha yekhodi yephutha ngekhebula le-RF elisheshayo. Amabhodi amabili enkampani ye-carrier angaqinisekisa ukuzimela kokuhlolwa kwe-RX kanye nokuhlolwa kwe-TX. Uma usebenzisa ukuhlolwa kwe-loopback, kudingeka ibhodi elilodwa kuphela lenkampani ye-carrier. Imojuli ye-optical ye-800G idinga indlela ye-optical ye-8T8R, ehambisana nesidingo sama-pair angu-16 ezibonakaliso zomehluko ze-Gold Finger, okusho izintambo/amabhodi enkampani ye-RF angu-32.
1.2 Imishini Yokulawula Izinga Lokushisa
Amabhodi okuthwala e-MCB avame ukuhlonyiswa ngamadivayisi okushisa nawokuthola ukuze asekele ukusebenza kokuhlola emazingeni okushisa ahlukene. Imishini yokulawula izinga lokushisa ngokuvamile ilayishwa ebhodini lokuthwala le-MCB le-DUT. Ukuhlanganisa ukulawula izinga lokushisa ebhodini lokuthwala le-MCB kungenza imishini ibe lula.
1.3 Isihlaziyi sekhodi yephutha
Lungiselela abahloli ababili bephutha le-800G bit ukuze bakhiphe ukulandelana kwe-PRBS bese beqhuba ukuhlolwa kwe-RX kanye ne-TX ngokulandelana. Uma i-standard optical module isekela ukulandelana kwe-PRBS, ingagcina i-one bit error detector bese isebenzisa ikhompyutha ephezulu ukuyala i-standard optical module ukuthumela ukulandelana kokuhlolwa. Ukuhlolwa kwe-Drive RX (ukuhlolwa kwephutha le-bit): Dala ukulandelana kokuhlolwa, thola ukulandelana kokubuya, bese uqhathanisa iphutha phakathi kwe-transmitter kanye ne-receiver, okungukuthi, iphutha le-bit. Ukuhlolwa kwe-Drive TX (ukuhlolwa kwe-eye diagram): Dala ukulandelana kokuhlolwa kwe-DUT, bese i-DUT ikhipha ukukhanya ngokwalolu chungechunge. Ukuhlanganiswa kwangaphakathi kwebhodi labathwali be-MCB kanye nemishini yokulawula izinga lokushisa ku-error code analyzer kungenza kube lula kakhulu imishini.
Imishini Yewashi ye-1.4CDR
Isignali yokukhanya ithunyelwa njalo, futhi i-CDR ikhomba umkhawulo walesi sikhathi sesikhathi kusukela kusignali yokukhanya.
1.5 I-Oscilloscope
Ngokusho kwesignali yesikhathi enikezwa yi-CDR, idatha yesignali yokukhanya ifakwa njalo ukuze kwakheke umdwebo wamehlo. Uma i-oscilloscope isekela okokufaka okungu-4 kanye nokuhlolwa kwe-800G, khona-ke kudingeka amayunithi amabili. Kubiza kakhulu, uma ufuna ukonga imali, ungasebenzisa inkinobho yokukhanyisa ukushintsha.
1.6Iswishi yokukhanya
Shintsha indlela yokukhanya phakathi kokuhlolwa kwedayagramu yamehlo nokuhlolwa kwamandla.
1.7Imitha yamandla e-Optical
Kala amandla okukhanya okukhiphayo, iziteshi ezingu-8. Imitha yamandla okukhanya ingafakwa kuswishi yokukhanya, okwenza kube lula imishini.
Ukunikezwa kwamandla kagesi okungu-1.8 DC
Nikeza amandla e-DC azinzile ebhodini lenkampani ye-MCB.
2, i-logic yokwakha uhlelo lokuhlola
2.1. Ukuhlolwa kokusebenza kokwamukelwa kwe-RX (izinga lamaphutha e-bit, ukuzwela)
Ukugeleza kwesiginali: Isihlaziyi sekhodi yephutha 2 → Imodyuli ejwayelekile ye-optical → Isihlikihli se-Optical → I-DUT → Isihlikihli sekhodi yephutha 1
Imishini ebalulekile: i-optical attenuator (esetshenziselwa ukuskena amaphoyinti kagesi), i-optical module ejwayelekile (esetshenziswa njengomthombo wokukhanya).
Inhloso: Ukukala izinga lephutha le-bit le-DUT ngamandla ahlukene okukhanya ngokushintsha inani lokunciphisa.
2.2. Ukuhlolwa kokusebenza kokukhishwa kwe-TX (umdwebo wamehlo, amandla okukhanya)
Ukugeleza kwesiginali: Isihlaziyi sekhodi yephutha 1 → I-DUT → Iswishi ye-Optical → (imitha yamandla/i-oscilloscope+CDR)
Imishini ebalulekile: Iswishi yokukhanya (ukushintsha umzila), i-CDR (ukubuyisela iwashi, yezibonakaliso ze-PAM4).
Inhloso: Ukuqinisekisa amandla okukhanya akhishwayo kanye nekhwalithi yesignali (umdwebo wamehlo kufanele ubonise "amehlo" amathathu e-PAM4).
3, Amaphuzu ayisihluthulelo okucushwa okukhethekile kokuhlolwa kwe-800G
Ubuningi besiteshi: I-800G isebenzisa iziteshi ezingu-8 (8T8R), kanti iminwe yensimbi yebhodi lokuthwala i-MCB idinga ukuhambisana nama-pair angu-16 ezibonakaliso zomehluko (izintambo ezingu-32 ze-RF).
Uhlobo lwesignali: Ukuze kuguqulwe i-PAM4, i-oscilloscope kumele ihlanganiswe nemishini ye-CDR ukuze ithwebule ngokunembile umdwebo wamehlo.
Isixazululo esilula: I-error detector ingahlanganisa imisebenzi ye-MCB kanye nokulawula izinga lokushisa. I-optical switch ingahlanganiswa ne-optical power meter. Uma kusetshenziswa i-loop back testing (i-DUT self collecting), inganciphisa ibhodi elilodwa le-MCB carrier kanye ne-standard module, kodwa izinto zokuhlola zingase zibe nemingcele.
4, Incazelo yamagama ayisihluthulelo
I-PRBS: Ukulandelana okungahleliwe okungahleliwe, okulingisa ithrafikhi yedatha yangempela.
I-MCB: Ibhodi labathwali bokuthobela imithetho yemodyuli, umshini wokuhlola.
I-CDR: Ukubuyisa idatha yewashi, ukukhipha iwashi kuzimpawu zokukhanya.
Umdwebo wamehlo we-PAM4: ukuguquguquka kwe-pulse amplitude enamazinga amane, umdwebo wamehlo wethula izinyathelo ezine (ukuvulwa kwamehlo amathathu)
Isikhathi sokuthunyelwe: Meyi-28-2026