Ma waena o nā uwea ʻōpika OPGW i hoʻohana ʻia ma ka ʻōnaehana mana o koʻu ʻāina, ʻelua ʻano kumu, G.652 maʻamau hoʻokahi-mode fiber a me G.655 non-zero dispersion shifted fiber, ʻo ia ka mea i hoʻohana nui ʻia. ʻO ka hiʻohiʻona o G.652 hoʻokahi-mode fiber he liʻiliʻi loa ka hoʻopuehu ʻana i ka wā o ka hawewe hana he 1310nm, a ʻo ka mamao o ka lawe ʻana i kaupalena ʻia e ka attenuation o ka fiber. Hoʻohana mau ʻia ka puka aniani 1310nm o ka G.652 fiber core e hoʻouna i ka ʻike kamaʻilio a me ka automation. ʻO G.655 optical fiber ka haʻahaʻa haʻahaʻa ma ka puka makani 1550nm e hana ana i ka hawewe lōʻihi a hoʻohana mau ʻia e hoʻouna i ka ʻike palekana.
ʻO G.652A a me G.652B nā fibers optical, i ʻike ʻia ʻo nā fibers optical mode hoʻokahi maʻamau, i kēia manawa ka mea i hoʻohana nui ʻia. ʻO kāna nalu hana maikaʻi loa ʻo ia ka 1310nm wahi, a hiki ke hoʻohana ʻia ka wahi 1550nm. Eia naʻe, ma muli o ka hoʻopuehu nui ʻana ma kēia wahi, ua kaupalena ʻia ka mamao o ka lawe ʻana ma kahi o 70 ~ 80km. Inā makemake ʻia ka hoʻouna ʻana i kahi mamao o 10Gbit/s a i ʻole ma kahi 1550nm, pono ka uku hoʻopuehu. Hoʻokumu ʻia nā fiber optical G.652C a me G.652D ma G.652A a me B. Ma ka hoʻomaikaʻi ʻana i ke kaʻina hana, hoʻemi nui ʻia ka attenuation ma ka ʻāina 1350 ~ 1450nm, a hoʻonui ʻia ka lōʻihi o ka hawewe hana i 1280 ~ 1625nm. ʻOi aku ka nui o nā kāʻei i loaʻa ma mua o nā fiber mode hoʻokahi. Ua hoʻonui ʻia ka fiber optics ma mua o ka hapalua.
Ua kapa ʻia ʻo G.652D fiber ka lōʻihi hawewe i hoʻonui ʻia i ka fiber mode hoʻokahi. Kona waiwai i basically like G.652B puluniu, a me ka attenuation coefficient ua like ia me G.652C puluniu. ʻO ia hoʻi, hiki i ka ʻōnaehana ke hana i ka band 1360 ~ 1530nm, a ʻo ka loaʻa ʻana o ka hawewe hana i loaʻa ʻo G .652A, hiki iā ia ke hoʻokō i nā pono hoʻomohala o ka nui-kaha a me ke kiʻekiʻe kiʻekiʻe o ka hawewe hawewe mahele multiplexing ʻenehana i nā ʻoihana metropolitan area. Hiki iā ia ke mālama i ka bandwidth hana nui no nā pūnaewele optical, mālama i ka hoʻopukapuka kelepona optical a hoʻemi i nā kumukūʻai kūkulu. Eia kekahi, ʻoi aku ka koʻikoʻi o ka dispersion coefficient mode polarization o G.652D fiber ma mua o ko G.652C fiber, e kūpono ana ia no ka lawe lōʻihi.
ʻO ke kumu hana o ka pulupulu G.656 ʻaʻole nō-zero dispersion fiber. ʻO ka ʻokoʻa ma waena o G.656 optical fiber a me G.655 optical fiber ʻo ia (1) ʻoi aku ka nui o ka bandwidth hana. ʻO ka bandwidth hana o G.655 optical fiber he 1530 ~ 1625nm (C + L band), aʻo ka bandwidth hana o G.656 optical fiber he 1460 ~ 1625nm (S + C + L band), a hiki ke hoʻonui ʻia ma mua o 1460 ~ 1625nm i ka wā e hiki mai ana, hiki iā ia ke paʻi piha i ka hiki o ka bandwidth nui o ke aniani quartz fiber; (2) ʻOi aku ka liʻiliʻi o ka dispersion slope, hiki ke hōʻemi nui i ka hoʻopuehu ʻana o ka ʻōnaehana DWDM uku uku. ʻO ka fiber optical G.656 he fiber optical non-zero dispersion shifted me ka dispersion slope of basically zero a me ka laulā hawewe hana e uhi ana i ka S+C+L band no ka broadband optical transmission.
Ke noʻonoʻo nei i ka hoʻonui hou ʻana o nā ʻōnaehana kamaʻilio, pono e hoʻohana i nā fiber optical o ka subtype like i ka ʻōnaehana like. Mai ka hoʻohālikelike ʻana o nā ʻāpana he nui e like me ka chromatic dispersion coefficient, attenuation coefficient, a me PMDQ coefficient, ma ka māhele G.652, ʻoi aku ka maikaʻi o ka PMDQ o G.652D fiber ma mua o nā subcategories ʻē aʻe a loaʻa ka hana maikaʻi loa. Ma ka noʻonoʻo ʻana i nā kumu kumu kūʻai, ʻo G .652D optical fiber ka koho maikaʻi loa no ka OPGW optical cable. ʻOi aku ka maikaʻi o ka hana holoʻokoʻa o G.656 optical fiber ma mua o ka C.655 optical fiber. Manaʻo ʻia e hoʻololi i ka fiber optical G.655 me ka fiber optical G.656 i ka papahana.
