Kodi mtunda wokwanira kwambiri wa chingwe cha nthambi ndi wotani?

M'zaka zaposachedwa, ndi chitukuko cha makampani opanga mauthenga a kuwala ndi zotsatsa zina zokhudzana nazo, FTTH (Ulusi wa Kunyumba) yakhala njira yothetsera vutoli posachedwapa. Imasintha malinga ndi kupita patsogolo kwaukadaulo m'munda wa kuwala ndipo imagwirizana ndi zofunikira zotumizira ma signal mwachangu komanso mwamphamvu kwa ogwiritsa ntchito m'maukonde a kuwala. Mu mapulojekiti opezera ma FTTH okhala ndi mphamvu zambiri, kupindika kwa makina ndi mphamvu yokoka kwa zingwe zowunikira zamkati sizingakwaniritsenso zofunikira za ma waya amkati a FTTH. Poyankha kufunika kwa msika, zingwe zowunikira zamtundu wa kuwala zolimba komanso zopindika pang'ono zatuluka ndipo zimagwiritsidwa ntchito kwambiri m'maukonde opezera ma FTTH.

Mtunda waukulu kwambiri wotumizira chingwe chotsitsa ukhoza kufika makilomita 70. Komabe, nthawi zambiri, gawo lomanga limaphimba netiweki ya msana wa fiber optic mpaka kunyumba kenako n’kuisintha kudzera mu optical transceiver. Komabe, ngati ntchito ya kilomita imodzi ikuchitika pogwiritsa ntchito chingwe chokhala ndi chikopa, iyenera kukhala yoyikidwa kunja. Chingwe chokhala ndi chikopa chokha ndi chofooka kwambiri, zomwe zimapangitsa kuti chisweke mosavuta, ndipo kulimba kwake sikokwera kwambiri.

Chifukwa cha kufewa kwake komanso kupepuka kwake, chingwe chogwetsa chimagwiritsidwa ntchito kwambiri m'maukonde olowera. Dzina lasayansi la chingwe chogwetsa ndi chingwe cholowera chooneka ngati gulugufe cha maukonde olowera; chimatchedwanso chingwe cha gulugufe chifukwa cha mawonekedwe ake. Chimagwiritsidwa ntchito kupanga mawaya owonera ndi zingwe zowonera za nambala eyiti.

Chingwe chophimbidwa: Ndi ulusi wowala womwe umatha kupindika womwe ungapereke bandwidth yokwera kuti uwonjezere magwiridwe antchito a netiweki; ndi ma FRP awiri ofanana kapena zolimbitsa zitsulo, chingwe chowala chimakhala ndi kukana kwabwino kokanikiza kuti chiteteze ulusi wowala; chingwe chowala chili ndi kapangidwe kosavuta komanso kulemera kopepuka, komanso chothandiza kwambiri; chili ndi kapangidwe kapadera ka groove, kosavuta kusenda, komanso kosavuta kulumikiza.

Ngati ndi ya single-mode, ikhoza kukhala patali, koma ngati projekiti ya kilomita imodzi yachitika ndi chingwe chachikopa, iyenera kukhala projekiti yakunja, kotero zimamveka ngati chingwe chachikopa ndi chofooka kwambiri, chosavuta kuswa, ndipo chilibe mphamvu yothawira nthawi yayitali chonchi.