Kedu ihe e ji mara eriri otu ụdị?

Otu eriri mode: Central glass core dị ezigbo mkpa (isi dayameta bụ n'ozuzu 9 ma ọ bụ 10) μm), naanị otu ụdị nke eriri anya nwere ike ibunye.

The intermodal mgbasa nke otu-mode eriri dị nnọọ obere, nke kwesịrị ekwesị maka ime nkwurịta okwu, ma e nwekwara ihe dispersion na waveguide dispersion.N'ụzọ dị otú a, eriri otu-mode nwere ihe dị elu chọrọ maka obosara obosara na nkwụsi ike nke isi iyi ọkụ, ya bụ, obosara obosara kwesịrị ịdị warara na nkwụsi ike kwesịrị ịdị mma.

Mgbe e mesịrị, a hụrụ na na 1.31 μ Na M wavelength, ihe dispersion na waveguide dispersion nke otu-mode eriri bụ nti na-adịghị mma, na size bụ kpọmkwem otu.Ya mere, 1.31 μ M wavelength mpaghara aghọwo ezigbo window na-arụ ọrụ nke ngwa anya eriri nkwurịta okwu, na ọ bụkwa isi ọrụ gbalaga nke bara uru ngwa anya eriri nkwurịta okwu usoro 1.31μM isi parameters nke ot otu-mode eriri na-ekpebisi ike site ITU-T na G652 nkwanye, otú a na ụdị eriri na-akpọ G652 eriri.

Tụnyere na multimode eriri, otu-mode eriri nwere ike na-akwado ogologo nnyefe anya.Na 100Mbps Ethernet na 1G gigabit netwọk, eriri otu ụdị nwere ike ịkwado ebe nnyefe nke ihe karịrị 5000m.

Site n'echiche nke ọnụ ahịa, n'ihi na transceiver anya dị oke ọnụ, ọnụ ahịa nke iji eriri anya nke otu mode ga-adị elu karịa nke eriri eriri eriri multi-mode.

Nkesa ntugharị refractive yiri nke eriri mutant, na dayameta isi bụ naanị 8 ~ 10 μm.Ìhè ahụ na-agbasa n'akụkụ etiti axis nke eriri eriri n'ụdị ahịrị.N'ihi na ụdị eriri a nwere ike ibunye naanị otu ụdị (mmebi nke steeti polarization abụọ), a na-akpọ ya eriri otu mode, mgbagọ mgbagha ya dịkwa obere.

Nkọwa nke “ofiber optical modem” na akwụkwọ agụmakwụkwọ: n'ozuzu, mgbe V na-erughị 2.405, ọ bụ naanị otu ebili mmiri na-agafe na eriri anya, yabụ a na-akpọ ya fiber optical otu-mode.Isi ya dị gịrịgịrị, ihe dịka 8-10 microns, na mgbasa nke ọnọdụ dị obere.Isi ihe na-emetụta nnyefe gbalaga obosara nke ngwa anya eriri dị iche iche dispersion, na mode dispersion bụ ihe kasị mkpa, na dispersion nke otu-mode ngwa anya eriri bụ obere, Ya mere, ìhè nwere ike ibunye n'ebe dị anya na a obosara ugboro. band.

The otu-mode ngwa anya eriri nwere a isi dayameta nke 10 microns, nke nwere ike ikwe ka otu-mode beam nnyefe na ibelata adịghị ike nke bandwit na modal dispersion.Otú ọ dị, n'ihi na obere isi dayameta nke otu-mode ngwa anya eriri, ọ na-esi ike ịchịkwa doo nnyefe, otú ọ chọrọ oké ọnụ laser dị ka ìhè isi iyi, na isi mmachi nke otu-mode ngwa anya eriri ụgha na ihe dispersion, Single. mode optical cable na-ejikarị laser nweta bandwidth dị elu.N'ihi na LED ga-ebunye ọnụ ọgụgụ dị ukwuu nke isi iyi dị iche iche nke bandwit dị iche iche, ihe a na-achụsasị ihe dị mkpa dị ezigbo mkpa.

Tụnyere na multimode eriri, otu-mode eriri nwere ike na-akwado ogologo nnyefe anya.Na 100Mbps Ethernet na 1G gigabit netwọk, eriri otu ụdị nwere ike ịkwado ebe nnyefe nke ihe karịrị 5000m.

Site n'echiche nke ọnụ ahịa, ebe ọ bụ na transceiver ngwa anya dị oke ọnụ, ọnụ ahịa nke iji eriri anya nke otu mode ga-adị elu karịa nke multi-mode optical fiber cable.

Otu eriri ụdị (SMF)

Tụnyere na multimode eriri, ndị isi dayameta nke otu-mode eriri bụ ukwuu thinner, naanị 8 ~ 10 μ m. N'ihi na naanị otu mode na-ebute site ná, ọ dịghị inter mode dispersion, obere mkpokọta dispersion na obosara bandwit.A na-eji eriri otu mode mee ihe na 1.3 ~ 1.6 μ Na mpaghara wavelength nke M, site na nhazi kwesịrị ekwesị nke nkesa index refractive nke eriri anya na nhọrọ nke ihe dị ọcha dị elu iji kwadebe ihe mkpuchi 7 ugboro karịa isi, Opekempe ọnwụ na kacha nta mgbasa nwere ike nweta n'otu oge na nke a gbalaga.

A na-eji eriri ngwa anya naanị otu ọnọdụ na sistemụ nzikọrịta ozi eriri anya na ike dị elu, netwọk mpaghara mpaghara eriri anya yana ihe mmetụta eriri anya dị iche iche.