1. Ihe dị iche n'etiti otu-mode na multi-mode fiber optic transceivers
The isi dayameta nke multimode eriri bụ 50 ~ 62.5μm, mpụta dayameta nke cladding bụ 125μm, na isi dayameta nke otu-mode eriri bụ 8.3μm, na mpụta dayameta nke cladding bụ 125μm.Ogologo ogologo ọrụ nke eriri anya bụ 0.85 μm maka ogologo wavelengths dị mkpụmkpụ, 1.31 μm na 1.55 μm maka ogologo wavelengths.Ọnwụ eriri n'ozuzu na-ebelata site na ogologo ogologo, ọnwụ nke 0.85μm bụ 2.5dB / km, ọnwụ nke 1.31μm bụ 0.35dB / km, na ọnwụ nke 1.55μm bụ 0.20dB / km, nke bụ nkwụsị kacha ala nke ụlọ ọrụ ahụ. eriri, ogologo wavelength nke 1.65 mfu n'elu μm na-abawanye.N'ihi mmetụta absorption nke OHˉ, enwere ọnụ ọgụgụ mfu na nso nke 0.90 ~ 1.30μm na 1.34 ~ 1.52μm, na usoro abụọ a adịghị arụ ọrụ nke ọma.Kemgbe afọ ndị 1980, a na-achọsi ike iji eriri ndị nwere otu ụdị, na ogologo wavelength nke 1.31 μm ka ejirila ụzọ mee ihe.
Multimode eriri
Multimode fiber: The Central glass core bụ thicker (50 ma ọ bụ 62.5μm), nke nwere ike ibunye ọkụ n'ọtụtụ ụdịdị.Ma mgbasa ozi intermodal ya buru ibu, nke na-egbochi oge nke na-ebufe akara dijitalụ, ọ ga-adịkwa njọ karị na mmụba nke anya.Ọmụmaatụ: 600MB/KM eriri nwere naanị 300MB bandwit na 2KM.Ya mere, anya nke multimode eriri nnyefe bụ dịtụ mkpụmkpụ, n'ozuzu nanị ole na ole kilomita.
otu mode eriri
Fiber-mode fiber (Single Mode Fiber): Isi iko etiti dị ezigbo mkpa (dayameta isi bụ 9 ma ọ bụ 10 μm), naanị otu ụdị ọkụ nwere ike ibunye.Ya mere, ya intermodal dispersion bụ nnọọ obere, nke kwesịrị ekwesị maka ogologo nkwurịta okwu, ma e nwekwara ihe dispersion na waveguide dispersion, otú ahụ otu-mode eriri nwere elu chọrọ na ụdịdị obosara na nkwụsi ike nke ìhè isi iyi, ya bụ. , obosara spectral kwesịrị ịdị warara ma kwụsie ike.Dị mma.Mgbe e mesịrị, achọpụtara na na wavelength nke 1.31 μm, ihe na-ekesa ihe na waveguide mgbasa nke otu-mode eriri dị mma na adịghị mma, na ịdị ukwuu bụ kpọmkwem otu.Nke a pụtara na n'ogo nke 1.31 μm, mkpokọta eriri nke otu ụdị bụ efu.Site na njirimara ọnwụ nke eriri, 1.31μm bụ naanị windo na-efu efu nke eriri ahụ.N'ụzọ dị otú a, 1.31μm wavelength mpaghara aghọwo ezigbo windo na-arụ ọrụ maka ngwa anya fiber nkwurịta okwu, na ọ bụkwa isi ọrụ band nke bara uru ngwa anya fiber nkwurịta okwu usoro.The isi parameters nke 1.31μm ot otu-mode eriri na-ekpebisi ike site International Telecommunication Union ITU-T na G652 nkwanye, otú a eriri na-akpọ G652 eriri.
A na-emepụta teknụzụ otu ụdị na ọtụtụ ụdị n'otu oge?Ọ bụ eziokwu na nke na-aga n'ihu na multi-mode na-aga n'ihu?N'ozuzu, a na-eji multi-mode maka obere anya, na naanị otu-mode ka a na-eji maka ebe dị anya, n'ihi na nnyefe na nnabata nke multi-mode fibers Ngwaọrụ dị ọnụ ala karịa otu ụdị.
A na-eji eriri otu ụdị eme ihe maka nnyefe dị anya, a na-ejikwa eriri multi-mode maka nnyefe data ime ụlọ.Naanị otu ụdị ka enwere ike iji ogologo oge, mana ọ bụchaghị iji ọtụtụ ụdị maka nnyefe data ime ụlọ.
Ma ngwa anya eriri eji na sava na nchekwa ngwaọrụ bụ otu-mode ma ọ bụ multi-mode Ọtụtụ n'ime ha na-eji multi-mode, n'ihi na m na-etinye naanị na nkwurịta okwu ngwa anya fibers na-adịghị doro anya banyere nke a nke.
A ghaghị iji eriri anya mee ihe abụọ abụọ, ma enwere akụrụngwa ọ bụla dị ka ndị na-atụgharị mgbama eriri otu oghere nwere otu oghere?
A ga-eji eriri anya mee ihe abụọ?Ee, na ọkara nke abụọ nke ajụjụ a, ị pụtara ịnyefe na ịnweta ìhè n'otu eriri anya?Nke a ga-ekwe omume.China Telecom's 1600G netwọk eriri anya azụ azụ dị ka nke a.
Ihe kachasị dị iche n'etiti otu-mode fiber optic transceivers na multi-mode fiber optic transceivers bụ nnyefe anya.Multi-mode optical fiber transceiver bụ multi-node na multi-port signal transceiver na-arụ ọrụ mode, ya mere, mgbaàmà anya nnyefe dị mkpụmkpụ, ma ọ bụ ihe adaba, na ọ dịghị mkpa iji na-ewu nke mpaghara intranet. .Otu eriri eriri bụ otu nnyefe ọnụ, ya mere ọ dị mma maka nnyefe nke ahịrị okporo osisi dị anya ma bụrụ ihe owuwu nke netwọk mpaghara cross-metropolitan.
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2. Otu esi amata ọdịiche nke otu-mode na multi-mode fiber optic transceivers
Mgbe ụfọdụ, anyị kwesịrị ịkwado ụdị transceiver fiber optic, yabụ kedu ka esi achọpụta ma transceiver fiber optic bụ otu-mode ma ọ bụ ọtụtụ ọnọdụ?
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1. Chọpụta ọdịiche dị na isi nkwọcha ahụ, wepụ eriri optic transceiver isi nkwọcha isi uzuzu, wee lelee agba nke ihe ndị dị na interface dị na isi nkwọcha.A na-ekpuchi akụkụ dị n'ime nke otu ụdị TX na RX interfaces na ceramik na-acha ọcha, na interface multi-mode bụ agba aja aja.
2. Chọpụta ọdịiche na ihe nlereanya: n'ozuzu hụ ma e nwere S na M na ihe nlereanya, S pụtara otu mode, M pụtara multi-mode.
3. Ọ bụrụ na etinyere ya ma jiri ya mee ihe, ị nwere ike ịhụ agba nke jumper fiber, oroma bụ multi-mode, odo bụ otu-mode.
Oge nzipu: Sep-01-2022