Fiber optical bụ eriri na-agbanwe agbanwe, nke na-apụtaghị ìhè nke enyo ma ọ bụ rọba ewepụsịrị, dị ntakịrị karịa ntutu mmadụ.A na-ejikarị eriri anya eme ihe dị ka ụzọ isi na-ebunye ọkụ n'etiti nsọtụ abụọ nke eriri ahụ wee chọta ọtụtụ ojiji na nkwukọrịta fiber-optic, ebe ha na-enye ohere ịnyefe ogologo ogologo na na bandwidth dị elu karịa eriri waya.Fiber optical na-agụnyekarị isi transperent gbara ya na ihe mkpuchi na-enweghị atụ nke nwere ntugharị dị ala.A na-edobe ọkụ n'ime isi site na nhụsianya nke ntule dị n'ime nke na-eme ka eriri na-arụ ọrụ dị ka ihe ntụgharị.N'ozuzu, e nwere ụdị abụọ nke eriri anya: eriri na-akwado ọtụtụ mgbasa ụzọ ma ọ bụ transverse ụdịdị a na-akpọ multimode fibers (MMF), ebe ndị na-akwado otu mode ka a na-akpọ single mode fibers (SMF).Single mode vs multimode fiber: kedu ihe dị iche n'etiti ha?Ịgụ ederede a ga-enyere gị aka inweta azịza ya.
Single Mode vs Multimode Fiber: Gịnị bụ otu mode eriri anya?
Na nkwurịta okwu fiber-optic, otu mode fiber optical (SM) bụ eriri anya emebere ka ọ na-ebu ọkụ naanị n'ime eriri ahụ ozugbo - ọnọdụ ntụgharị.N'ihi na otu mode ngwa anya eriri, n'agbanyeghị na ọ na-arụ ọrụ na 100 Mbit / s ma ọ bụ 1 Gbit / s ụbọchị ọnụego , nnyefe anya nwere ike iru opekata mpe 5 km.Dịka, a na-eji ya maka nnyefe mgbama dị anya.
Single Mode vs Multimode Fiber: Gịnị bụ multimode ngwa anya eriri?
Multimode optical fiber (MM) bụ ụdị eriri anya a na-ejikarị eme ihe maka nzikọrịta ozi n'obere anya, dị ka n'ime ụlọ ma ọ bụ na ụlọ akwụkwọ.Ọsọ mgbasa ozi na oke anya bụ 100 Mbit/s maka anya ruru 2 km (100BASE-FX), 1 Gbit/s ruo 1000m, na 10 Gbit/s ruo 550 m.Enwere ụdị ndeksi multimode abụọ: ndeksi nzọụkwụ na akara akara.
Kedu ihe dị iche n'etiti fiber optical mode na multimode?
Attenuation: The attenuation nke multimode eriri dị elu karịa SM eriri n'ihi na ya ibu isi dayameta.The eriri isi nke otu mode USB dị warara nke ukwuu, ya mere, ìhè nke na-agafe na ndị a fiber optic cables adịghị egosipụta ọtụtụ ugboro, nke na-eme ka attenuation na a kacha nta.
| Otu ụdị eriri | MkachaOde Fiber | ||
| Attenuation na 1310nm | 0.36dB/km | Attenuation na 850nm | 3.0dB/km |
| Attenuation na 1550nm | 0.22dB/km | Attenuation na 1300nm | 1.0dB/km |
Dayameta isi:Isi ihe dị iche n'etiti multimode na eriri ụdị otu bụ na nke mbụ nwere dayameta isi dị ukwuu, na-enwekarị dayameta isi nke 50 ma ọ bụ 62.5 µm na dayameta mkpuchi nke 125 µm.Ebe eriri ụdịdị otu ụdị nwere dayameta isi n'etiti 8 na 10 μm yana dayameta mkpuchi nke 125 µm.
Bandwit
Ebe ọ bụ na eriri multimode nwere nnukwu isi-size karịa otu eriri mode, ọ na-akwado ihe karịrị otu ụdị mgbasa.E wezụga, dị ka multimode emep uta eri, otu-mode emep uta eri eme exhibit modal dispersion n'ihi na multiple spatial ụdịdị, ma modal mgbasa nke otu mode eriri bụ ihe na-erughị multi-mode eriri.N'ihi ihe ndị a, otu ụdị eriri nwere ike inwe bandwit dị elu karịa multi-mode fibers.
Agba jaket
A na-eji ụcha jaket mgbe ụfọdụ iji mata ọdịiche nke eriri multimode na otu ụdị.Ọkọlọtọ TIA-598C na-atụ aro, maka ngwa ndị na-abụghị ndị agha, iji jaket edo edo maka eriri ụdị otu, yana oroma ma ọ bụ aqua maka eriri multimode, dabere n'ụdị.Ụfọdụ ndị na-ere ahịa na-eji violet ịmata ọdịiche dị elu nke arụmọrụ OM4 fiber na ụdị ndị ọzọ.
Oge nzipu: Sep-03-2021