Ubwa mbere, ubumenyi bwibanze bwa optique module
1.Ibisobanuro bya module optique:
Module nziza: ni, optique ya transceiver module.
2. Imiterere ya module optique:
Moderi ya optique ya transceiver igizwe nibikoresho bya optoelectronic, umuzunguruko ukora hamwe ninteruro ya optique, kandi igikoresho cya optoelectronic kirimo ibice bibiri: kohereza no kwakira.
Igice cyohereza ni: ikimenyetso cyamashanyarazi cyinjiza igipimo runaka kode itunganywa na chip yo gutwara imbere kugirango itware lazeri ya semiconductor (LD) cyangwa urumuri rusohora diode (LED) kugirango rutange urumuri rwerekana urumuri rwikigereranyo, na optique imbaraga zikoresha kugenzura izunguruka zitangwa imbere muriyo.Ibisohoka optique yerekana ibimenyetso biguma bihamye.
Igice cyakira ni: optique yerekana ibimenyetso byinjiza module yikigero runaka cyahinduwe mubimenyetso byamashanyarazi na diode ifotora.Nyuma ya preamplifier, ibimenyetso byamashanyarazi byerekana igipimo cya code ijyanye nibisohoka, kandi ibimenyetso bisohoka ni urwego rwa PECL.Mugihe kimwe, ikimenyetso cyo gutabaza gisohoka nyuma yo kwinjiza optique imbaraga ziri munsi yagaciro runaka.
3.Ibipimo n'akamaro ka module optique
Module nziza ifite ibintu byinshi byingenzi bya optoelectronic tekinike.Ariko, kubintu bibiri bishyushye-byahinduwe optique, GBIC na SFP, ibipimo bitatu bikurikira bikurikira bireba cyane muguhitamo:
Uburebure bwa Centre
Muri nanometero (nm), kuri ubu hari ubwoko butatu bwingenzi:
850nm (MM, multimode, igiciro gito ariko intera yohereza, muri rusange 500M);1310nm (SM, uburyo bumwe, igihombo kinini mugihe cyo kohereza ariko gutatanya bito, mubisanzwe bikoreshwa mugukwirakwiza muri 40KM);
1550nm (SM, uburyo bumwe, igihombo gito mugihe cyo kohereza ariko gutatanya kwinshi, mubisanzwe bikoreshwa mugukwirakwiza intera ndende hejuru ya 40KM, kandi birashobora kohereza 120KM itabigenewe);
Igipimo cyo kohereza
Umubare wa bits (bits) yamakuru yatanzwe kumasegonda, muri bps.
Hano hari ubwoko bune bukunze gukoreshwa: 155 Mbps, 1.25 Gbps, 2.5 Gbps, 10 Gbps, nibindi nkibyo.Igipimo cyo kohereza muri rusange kirahuza inyuma.Kubwibyo, 155M optique module nayo yitwa FE (100 Mbps) optique, naho 1.25G optique nayo yitwa GE optique ya GE (Gigabit).Nuburyo bukoreshwa cyane mubikoresho byohereza optique.Mubyongeyeho, igipimo cyayo cyohereza muri sisitemu yo kubika fibre (SAN) ni 2Gbps, 4Gbps na 8Gbps.
Intera yoherejwe
Ikimenyetso cya optique ntigikenewe koherezwa intera ishobora kwanduzwa mu buryo butaziguye, mu birometero (nanone bita kilometero, km).Module optique muri rusange ifite ibisobanuro bikurikira: multimode 550m, uburyo bumwe 15km, 40km, 80km, na 120km, nibindi.
Icya kabiri, igitekerezo cyibanze cya optique
Icyiciro cyanyuma
Lazeri nicyo kintu cyingenzi kigizwe na module ya optique itera umuyoboro wa semiconductor kandi igatanga urumuri rwa lazeri binyuze mu kunyeganyega kwa foton no kunguka mu cyuho.Kugeza ubu, laseri ikoreshwa cyane ni FP na DFB.Itandukaniro nuko ibikoresho bya semiconductor nibikoresho bya cavity bitandukanye.Igiciro cya lazeri ya DFB ihenze cyane kurenza lazeri ya FP. Module nziza ifite intera yoherejwe kugeza kuri 40KM muri rusange ikoresha lazeri ya FP. Module nziza hamwe nintera yoherejwe.≥40KM muri rusange ikoresha laseri ya DFB.
2.Kwirakwiza imbaraga za optique no kwakira sensibilité
Imbaraga za optique zoherejwe bivuga ibisohoka optique yimbaraga zumucyo kumpera yumurongo wa optique module.Kwakira ibyiyumvo bivuga imbaraga nkeya yakiriwe ya optique ya module ya optique ku gipimo runaka na biti yikosa.
Ibice byibi bipimo byombi ni dBm (bisobanura decibel milliwatt, logarithm yumuriro wamashanyarazi mw, formula yo kubara ni 10lg, 1mw ihinduka 0dBm), ikoreshwa cyane cyane mugusobanura intera ihererekanya ryibicuruzwa, uburebure butandukanye, igipimo cyogukwirakwiza hamwe na optique ya optique yohereza imbaraga no kwakira sensitivite bizaba bitandukanye, mugihe intera yoherejwe ishobora kuba yizewe.
3. Gutakaza no gutatana
Igihombo ni ugutakaza ingufu z'umucyo bitewe no kwinjizwa no gutatanya hagati no kumurika k'umucyo iyo urumuri rwandujwe muri fibre.Iki gice cyingufu zisaranganywa ku kigero runaka uko intera yoherezwa yiyongera.Ikwirakwizwa riterwa ahanini n’umuvuduko utaringaniye w’umuriro wa electromagnetique wumurambararo utandukanye ukwirakwira mu buryo bumwe, bigatuma ibice bitandukanye byuburebure bwikimenyetso cya optique bigera kuri kwakira iherezo mu bihe bitandukanye bitewe no kwegeranya intera yoherejwe, bikavamo kwaguka kwa pulse bityo ntushobore gutandukanya ibimenyetso.agaciro.Ibi bipimo byombi bigira ingaruka cyane cyane ku ntera yoherejwe na module ya optique.Mubikorwa nyabyo byo gusaba, module ya 1310nm ya optique isanzwe ibara igihombo kuri 0.35dBm / km, naho module ya 1550nm isanzwe ibara igihombo kuri .20dBm / km, ikabara agaciro kayo.Biragoye cyane, mubisanzwe gusa kubisobanuro.
4.Ubuzima bwa module optique
Ibipimo mpuzamahanga bihuriweho, amasaha 50.000 yakazi gahoraho, amasaha 50.000 (ahwanye nimyaka 5).
SFP optique modules zose ni LC intera.GBIC optique modules zose ni interineti ya SC.Izindi interineti zirimo FC na ST.