Pakati pa zingwe za OPGW zogwiritsa ntchito mphamvu za dziko langa, mitundu iwiri yayikulu, G.652 yamtundu umodzi wamtundu umodzi ndi G.655 yopanda ziro dispersion kusuntha CHIKWANGWANI, ndizo zomwe zimagwiritsidwa ntchito kwambiri. Chikhalidwe cha G.652 single-mode fiber ndi chakuti fiber dispersion ndi yaying'ono kwambiri pamene mawonekedwe ogwiritsira ntchito ndi 1310nm, ndipo mtunda wotumizira umangokhala wochepa chifukwa cha kuchepa kwa fiber. Zenera la 1310nm la G.652 fiber core nthawi zambiri limagwiritsidwa ntchito potumiza mauthenga olankhulana ndi odzipangira okha. G.655 optical fiber ili ndi kutsika kobalalika mu 1550nm zenera ntchito wavelength dera ndipo kawirikawiri amagwiritsidwa ntchito kufalitsa uthenga chitetezo.
G.652A ndi G.652B optical fibers, omwe amadziwikanso kuti optical fibers ochiritsira amodzi, ndizomwe zimagwiritsidwa ntchito kwambiri pakalipano. Kutalika kwake kogwira ntchito bwino ndi dera la 1310nm, ndipo dera la 1550nm lingagwiritsidwenso ntchito. Komabe, chifukwa cha kubalalikana kwakukulu m'derali, mtunda wotumizira ndi wochepera 70 ~ 80km. Ngati kufalitsa mtunda wautali pamlingo wa 10Gbit/s kapena kupitilira apo kumafunika mdera la 1550nm, kulipidwa kwamwala kumafunika. G.652C ndi G.652D optical fibers amachokera ku G.652A ndi B motsatira. Pokonza ndondomekoyi, kuchepetsedwa kwa dera la 1350 ~ 1450nm kumachepetsedwa kwambiri, ndipo kutalika kwa kayendetsedwe kake kumakulitsidwa mpaka 1280 ~ 1625nm. Magulu onse omwe alipo ndi akulu kuposa ulusi wanthawi zonse wamtundu umodzi. Fiber optics idakula ndi theka.
G.652D CHIKWANGWANI amatchedwa wavelength range extended single-mode CHIKWANGWANI. Makhalidwe ake ali ofanana ndi G.652B fiber, ndipo coefficient yochepetsera ndi yofanana ndi G.652C fiber. Ndiko kuti, dongosololi likhoza kugwira ntchito mu gulu la 1360 ~ 1530nm, ndipo mawonekedwe a kutalika kwa mafunde omwe alipo ndi G .652A, amatha kukwaniritsa zofunikira za chitukuko cha mphamvu zazikulu komanso zamagulu ang'onoang'ono amtundu wa multiplexing teknoloji mumagulu amtundu waukulu. Itha kusungitsa bandwidth yayikulu yogwirira ntchito pama network owoneka bwino, kupulumutsa ndalama zama chingwe komanso kuchepetsa ndalama zomanga. Komanso, polarization mode dispersion coefficient ya G.652D fiber ndi yolimba kwambiri kuposa ya G.652C fiber, yomwe imapangitsa kuti ikhale yoyenera kufalitsa mtunda wautali.
Mphamvu ya G.656 fiber ikadali yopanda ziro dispersion fiber. Kusiyana pakati pa G.656 optical fiber ndi G.655 optical fiber ndikuti (1) ili ndi bandwidth yogwira ntchito. Bandiwifi yogwira ntchito ya G.655 optical fiber ndi 1530~1625nm (C+L band), pomwe bandwidth yogwiritsira ntchito ya G.656 optical fiber ndi 1460~1625nm (S+C+L band), ndipo ikhoza kukulitsidwa kupitirira 1460~ 1625nm m'tsogolomu, yomwe ingathe kugwiritsira ntchito mphamvu ya bandwidth yaikulu ya quartz glass fiber; (2) Malo otsetsereka ndi ochepa, omwe amatha kuchepetsa kwambiri kufalikira kwa dongosolo la DWDM Kulipira ndalama. G.656 optical fiber ndi chopanda ziro dispersion chosinthika cha fiber chokhala ndi dispersion slope of kwenikweni ziro ndi opareshoni wavelength kuphimba gulu S+C+L kwa burodibandi Optical transmission.
Poganizira kukweza kwamtsogolo kwa machitidwe olankhulirana, tikulimbikitsidwa kugwiritsa ntchito ulusi wa kuwala wamtundu womwewo mu dongosolo lomwelo. Kuchokera kufananitsa magawo angapo monga chromatic dispersion coefficient, attenuation coefficient, ndi PMDQ coefficient, mu gulu la G.652, PMDQ ya G.652D fiber ndi yabwino kwambiri kuposa yamagulu ena ndipo imakhala ndi ntchito yabwino. Poganizira zinthu zotsika mtengo, G .652D optical fiber ndiye chisankho chabwino kwambiri pa chingwe cha OPGW. Ntchito yonse ya G.656 optical fiber imakhalanso yabwino kwambiri kuposa ya C.655 optical fiber. Ndibwino kuti mulowe m'malo mwa G.655 optical fiber ndi G.656 optical fiber mu polojekitiyi.
