Optical module ndiyo yakakosha yemidziyo yekuona optical network yekubatanidza munzvimbo yedata. Nekuwedzera kwenhamba yechiteshi uye density, mari ye optical module ichaita inenge hafu yemutengo we optical network mu data center.Parizvino, 100G interconnection teknolojia yakashandiswa zvakanyanya munzvimbo ichangobva kuvakwa data data yemakambani makuru eInternet. uye 400G interconnection teknolojia ichashandiswa zvakanyanya mumakore anotevera 1-2. Nokudaro, kushandiswa kwekombiyuta ye 400G optical module yava chinangwa cheindasitiri.
Nezvekureba kwemafungu echiedza, 400G light module inogona kugoverwa kuva multi-mode (MM) uye single-mode (SM) .Maererano nesignal modulation mode, inogona kugoverwa muNRZ uye PAM4 modulation (PAM4 ndiyo huru. pari zvino) .Panyaya yekufambisa kure, 400G optical module inogona kugoverwa kuva SR, DR, FR uye LR. Kubva pane fomu yekuputira, 400G optical module inogona kukamurwa kuita CDFP, CFP8, OSFP, qsfp-dd zvichingodaro. Pazasi pane tekinoroji yemhando ye400G Optical module.
Yekutanga 400G optical module yakashandisa 16-channel 25Gbps NRZ kushandiswa (yakadai se400g-sr16), uchishandisa CDFP kana CFP8 purogiramu. Kubatsira kweNRZ ndeyekuti inogona kukweretwa kubva kune yakakura 25G NRZ tekinoroji pa100G optical module, asi chakashata ndechekuti inoda 16 chiteshi chechiratidzo chekufambisa kwakafanana, ine simba rakakura rekushandisa uye vhoriyamu, iyo isina kukodzera kushandiswa kwe data center.
Mune yazvino 400G optical module, 8-channel 53GbpsPAM4 (400g-sr8,FR8,LR8) kana 4-channel 106GbpsPAM4 (400g-dr4,FR4,LR4) inonyanya kushandiswa kuwana 400G chiratidzo chekufambisa mumativi e8 uye optical port. -channel 53GbpsPAM4 chiratidzo chemagetsi chinoshandiswa mumagetsi echiteshi chemagetsi, kutora fomu yekuputira ye OSFP kana qsfp-dd. Ose maviri OSFP uye QSFP-DD mapakeji anopa 8 - chiteshi chemagetsi emagetsi emagetsi.Mukuenzanisa, qsfp-dd package saizi idiki (yakafanana neyechinyakare 100G optical module QSFP28 package), iyo inonyanya kukodzera kune data data application. OSFP pasuru saizi yakakura zvishoma, nekuti inogona kupa mamwe mashandisiro emagetsi, saka yakanyanya kukodzera kune telecommunications application.
Iyi inotevera nhamba inoratidza kushandiswa kwe400g-fr8 /LR8 uye 400g-fr4 zvakateerana.
(Reference:OSFMSA Tsanangudzo yeOSFP OCTAL SMALLFORM FACTOR PLUGGABLE MODULE.）Izvo zvinogona kuoneka kuti iyo interface side ndeye 8-channel 53Gbps PAM4 chiratidzo. Ye400g-sr8 /FR8/LR8 uye mamwe ma module,
CDR (kudzoreredza wachi) uye magetsi / optical kana optical / magetsi kutendeuka anongoitwa mukati meiyo optical module. Nokudaro, rutivi rwepombi yemaziso ndeye 8-channel 53Gbps PAM4 chiratidzo, sezvakangoita chiyero chechiteshi chemagetsi.Kune 400g-dr4 / FR4/LR4 uye mamwe ma modules, kune Gearbox chips mukati me optical module iyo inowedzera kupinza kwezviviri. zviteshi kuita chiratidzo chimwe uye chinochigadziridza kuchiedza, saka kumhanya kwedivi rekuona chiteshi kwakapetwa kaviri kudivi rechiteshi, kureva, 106GbpsPAM4 chiratidzo.
