Daga cikin igiyoyin opgw na opgw da aka yi amfani da su a tsarin ikon kasata, nau'ikan coe biyu, G.652 na Birer-moseber Singer-moseber mara waya da G.655 wanda ake amfani da shi. Halin G.652 guda-yanayin fiber shine cewa watsawar fiber yana da ƙanƙanta lokacin da tsayin daka na aiki shine 1310nm, kuma nisan watsawa yana iyakance ne kawai ta hanyar attenuation na fiber. Ana amfani da taga mai girman 1310nm na G.652 fiber core don isar da bayanan sadarwa da aiki da kai. Fiber na gani na G.655 yana da ƙananan watsawa a cikin taga 1550nm yana aiki da yanki mai tsayi kuma yawanci ana amfani dashi don watsa bayanan kariya.
G.652A da G.652B na gani zaruruwa, kuma aka sani da al'ada guda-mode Tantancewar zaruruwa, a halin yanzu mafi yadu amfani na gani zaruruwa. Mafi kyawun tsayinsa na aiki shine yanki na 1310nm, kuma ana iya amfani da yankin 1550nm. Koyaya, saboda babban tarwatsewa a wannan yanki, nisan watsawa yana iyakance ga kusan 70 ~ 80km. Idan ana buƙatar watsa nisa mai nisa a ƙimar 10Gbit/s ko sama a cikin yankin 1550nm, ana buƙatar diyya mai rarrabawa. G.652C da G.652D na gani zaruruwa sun dogara ne akan G.652A da B bi da bi. Ta hanyar inganta tsarin, attenuation a cikin 1350 ~ 1450nm yankin ya ragu sosai, kuma an kara tsawon tsawon aiki zuwa 1280 ~ 1625nm. Duk makada da ake da su sun fi girma fiye da filayen yanayi ɗaya na al'ada. Fiber optics ya karu da fiye da rabi.
G.652D fiber ana kiransa kewayon tsayin tsayin fiber mai yanayin yanayi guda ɗaya. Its kaddarorin ne m guda da G.652B fiber, da attenuation coefficient ne iri daya da G.652C fiber. Wato, tsarin zai iya aiki a cikin 1360 ~ 1530nm band, da kuma samuwa aiki zangon iyaka ne G .652A, shi zai iya saduwa da ci gaban bukatun na babban-iko da high-yawa raƙumi rabo Multixing fasaha a cikin Metropolitan yankin cibiyoyin sadarwa. Yana iya ajiye babban yuwuwar bandwidth aiki don cibiyoyin sadarwa na gani, adana jarin kebul na gani da rage farashin gini. Bugu da ƙari, yanayin watsawa na polarization na G.652D fiber ya fi na fiber G.652C, yana sa ya fi dacewa da watsawa mai nisa.
Aiki jigon G.656 fiber har yanzu ba sifili watsawa fiber. Bambanci tsakanin G.656 fiber optic da G.655 fiber na gani shine cewa (1) yana da faffadan bandwidth mai aiki. Aikin bandwidth na G.655 fiber na gani shine 1530 ~ 1625nm (C + L band), yayin da bandwidth na aiki na fiber na gani na G.656 shine 1460 ~ 1625nm (S + C + L band), kuma ana iya fadadawa fiye da 1460 ~ 1625nm a nan gaba, wanda zai iya cika cikakkiyar damar babban bandwidth na fiber gilashin quartz; (2) Gandun tarwatsewa ya fi ƙanƙanta, wanda zai iya rage rarrabuwar kawuna na tsarin DWDM. G.656 Tantancewar fiber ne ba sifili watsawa canja Tantancewar fiber tare da watsawa gangara na m sifili da wani aiki zango iyaka rufe da S + C + L band for broadband Tantancewar watsa.
Idan aka yi la'akari da haɓakawa na gaba na tsarin sadarwa, ana ba da shawarar yin amfani da filaye na gani iri ɗaya a cikin tsarin iri ɗaya. Daga kwatankwacin ma'auni masu yawa irin su chromatic dispersion coefficient, attenuation coefficient, da PMDQ coefficient, a cikin nau'in G.652, PMDQ na G.652D fiber yana da mahimmanci fiye da na sauran ƙananan sassa kuma yana da mafi kyawun aiki. Yin la'akari da dalilai masu tsada, G .652D fiber fiber shine mafi kyawun zaɓi don kebul na gani na OPGW. Cikakken aikin G.656 fiber na gani kuma yana da mahimmanci fiye da na fiber na gani na C.655. Ana bada shawara don maye gurbin G.655 fiber fiber tare da G.656 fiber fiber a cikin aikin.
