'Ibara palette' muri fibre optique: kuki intera yoherejwe ya modul optique iratandukanye cyane

Mwisi yisi ya fibre optique itumanaho, guhitamo uburebure bwumucyo ni nkumurongo wa radiyo guhuza no guhitamo umuyoboro. Gusa muguhitamo "umuyoboro" ukwiye ibimenyetso bishobora gutangwa neza kandi neza. Kuki modules zimwe zifite optique zifite intera yo kohereza metero 500 gusa, mugihe izindi zishobora kurenza kilometero amagana? Amayobera ari mu 'ibara' ryurwo rumuri - cyane cyane, uburebure bwumucyo.

Muburyo bugezweho bwitumanaho rya optique, modulike ya optique yuburebure butandukanye ikina inshingano zitandukanye rwose. Uburebure butatu bwibanze bwa 850nm, 1310nm, na 1550nm bigize urwego rwibanze rwitumanaho rya optique, hamwe no kugabana imirimo neza mubijyanye nintera yoherejwe, ibiranga igihombo, hamwe nibisabwa.

1.Kubera iki dukeneye uburebure bwinshi?

Intandaro yuburebure bwumurongo muburyo bwa optique iri mubibazo bibiri byingenzi mugukwirakwiza fibre optique: gutakaza no gutatana. Iyo ibimenyetso bya optique byandujwe muri fibre optique, imbaraga zo kwiyongera (gutakaza) zibaho bitewe no kwinjizwa, gutatana, no kumeneka hagati. Muri icyo gihe, umuvuduko wo gukwirakwiza utaringaniye wibice bitandukanye byumuraba utera ibimenyetso byerekana kwaguka (gutatanya). Ibi byatanze ibisubizo byinshi byuburebure:

• 850nm band:cyane ikora muri fibre optique ya fibre optique, hamwe nintera yoherejwe mubisanzwe kuva kuri metero magana (nka metero ~ 550), kandi nimbaraga nyamukuru zo kohereza intera ngufi (nko mubigo byamakuru).

• 1310nm band:Yerekana ibintu bitandukanya bike muburyo busanzwe bwa fibre imwe, hamwe nintera yoherejwe kugeza kuri kilometero mirongo (nka kilometero ~ 60), bigatuma iba umusingi wogukwirakwiza intera ndende.

• 1550nm band:Hamwe nigipimo cyo hasi cyane (hafi 0.19dB / km), intera ihererekanyabubasha irashobora kurenga kilometero 150, bigatuma iba umwami wintera ndende ndetse na ultra ndende.

Kuzamuka kwa tekinoroji yuburebure bwa Multlexing (WDM) byongereye cyane ubushobozi bwa fibre optique. Kurugero, fibre imwe ya fibre yuburyo bubiri (BIDI) modulike optique igera kubitumanaho byombi kuri fibre imwe ukoresheje uburebure butandukanye (nka 1310nm / 1550nm ikomatanya) mugihe cyohereza no kwakira, bikabika cyane umutungo wa fibre. Iterambere ryinshi rya Dense Wavelength Division Multiplexing (DWDM) irashobora kugera ku ntera ndende cyane (nka 100GHz) mumirongo yihariye (nka O-band 1260-1360nm), kandi fibre imwe irashobora gushyigikira imiyoboro myinshi cyangwa amagana yumurongo wumurongo, bikongerera ubushobozi bwogukwirakwiza kurwego rwa Tbps kandi bikarekura byimazeyo ubushobozi bwa fibre optique.

2.Ni gute ushobora guhitamo siyanse yuburebure bwa modul optique?

Guhitamo uburebure bwumurongo bisaba gutekereza cyane kubintu byingenzi bikurikira:

Intera yoherejwe:

Intera ngufi (≤ 2km): nibyiza 850nm (fibre multimode).
Intera yo hagati (10-40km): ibereye 1310nm (fibre imwe).
Intera ndende (≥ 60km): 1550nm (fibre imwe-fibre imwe) igomba guhitamo, cyangwa igakoreshwa hamwe na amplifier optique.

Ubushobozi busabwa:

Ubucuruzi busanzwe: Module ihamye yumurongo urahagije.
Ubushobozi bunini, ubwinshi bwikwirakwizwa: Ikoranabuhanga rya DWDM / CWDM rirakenewe. Kurugero, sisitemu ya 100G DWDM ikorera muri O-band irashobora gushyigikira imiyoboro myinshi yumurongo mwinshi.

Ibiciro:

Module ihamye yumurongo: Igiciro cyambere cyibiciro kiri hasi cyane, ariko moderi nyinshi yumurambararo wibice byabigenewe igomba kubikwa.
Module yumurongo wa module: Ishoramari ryambere ni ryinshi, ariko binyuze muguhuza software, irashobora gukwirakwiza uburebure bwinshi, koroshya imicungire yimigabane, kandi mugihe kirekire, kugabanya imikorere no kubungabunga ibintu bigoye hamwe nigiciro.

Icyifuzo cyo gusaba:

Guhuza Data Centre (DCI): Ubucucike bukabije, imbaraga nke za DWDM ibisubizo byingenzi.
5G Imbere: Hamwe nibisabwa cyane kubiciro, ubukererwe, no kwizerwa, icyiciro cyinganda cyateguwe na fibre fibre icyerekezo kimwe (BIDI) ni amahitamo rusange.
Urusobe rwa parike ya entreprise: Ukurikije intera nubunini bwibisabwa, imbaraga nke, intera ndende na ngufi CWDM cyangwa modules zihamye zishobora guhitamo.

3.Umwanzuro: Ubwihindurize bwikoranabuhanga hamwe nibitekerezo bizaza

Tekinoroji ya optique ikomeje gusubiramo byihuse. Ibikoresho bishya nkuburebure bwumurongo wa WSS (WSS) hamwe na kirisiti ya kirisiti kuri silicon (LCoS) itera iterambere ryuburyo bworoshye bwububiko bwa optique. Udushya twibanze kuri bande yihariye, nka O-band, duhora tunonosora imikorere, nko kugabanya cyane gukoresha ingufu za module mugihe hagumijwe guhuza ibimenyetso bihagije byerekana urusaku (OSNR).

Mu gihe kizaza cyo kubaka umuyoboro, abashakashatsi ntibakeneye gusa kubara neza intera yoherejwe mugihe bahisemo uburebure bwumurongo, ariko kandi banasuzume byimazeyo imikoreshereze y’amashanyarazi, imihindagurikire y’ubushyuhe, ubwinshi bw’ibikorwa, hamwe n’ibikorwa byuzuye byubuzima hamwe n’ibiciro byo kubungabunga. Ubwizerwe buhanitse bwo guhitamo bushobora gukora neza kubirometero mirongo mubidukikije bikabije (nka -40 cold ubukonje bukabije) birahinduka inkunga yingenzi kubidukikije byoherejwe (nka sitasiyo ya kure).