ʻAʻole hiki i kekahi mau mea kūʻai ke hōʻoia i ke ʻano o ka fiber multimode pono lākou e koho.Aia ma lalo iho nā kikoʻī o nā ʻano like ʻole no kāu kuhikuhi.
Aia nā ʻano like ʻole o ka graded-index multimode glass fiber cable, me nā kaula OM1, OM2, OM3 a me OM4 (kū ʻo OM no ka optical multi-mode).
Hōʻike ʻo OM1 i ka uwea 62.5-micron a ʻo OM2 e kuhikuhi i ke kaula 50-micron.Hoʻohana maʻamau ʻia kēia i nā noi hale no nā pūnaewele hiki i ka 1Gb/s pōkole.Akā ʻaʻole kūpono ke kaula OM1 a me OM2 no nā pūnaewele ʻoi aku ka wikiwiki o kēia lā.
ʻO OM3 a me OM4 ʻelua i hoʻopaʻa ʻia i ka laser-optimized multimode fiber (LOMMF) a ua hoʻomohala ʻia e hoʻokipa i ka pūnaewele fiber optic wikiwiki e like me 10, 40, a me 100 Gbps.Hoʻolālā ʻia nā mea ʻelua no ka hoʻohana ʻana me 850-nm VCSELS (vertical-cavity surface-emitting lasers) a loaʻa iā lākou nā pū wai.
Hōʻike ʻo OM3 i kahi kaula 50-micron 850-nm laser-optimized me ka bandwidth modal kūpono (EMB) o 2000 MHz/km.Hiki iā ia ke kākoʻo i nā loulou 10-Gbps a hiki i 300 mika.Hōʻike ʻo OM4 i kahi uea 50-micron i hoʻopaʻa ʻia i ka laser kiʻekiʻe-bandwidth 850-nm i kahi bandwidth modal kūpono o 4700 MHz/km.Hiki iā ia ke kākoʻo i 10-Gbps link mamao o 550 mika.ʻO 100 Gbps ka mamao he 100 mika a me 150 mau mika, kēlā me kēia.
