Ruzivo rwekutanga rwe fiber optics

1. Mafiber ekuona anotumira sei chiedza?

Kuzadzikiswa kwekutaurirana kuburikidza fiber optics Yakavakirwa papfungwa yekuratidzwa kwechiedza chose.
Kana chiedza chikapararira chichienda pakati pefiber, refractive index n1 yefiber core yakakura kupfuura yecladding n2, uye kurasikirwa kwecore kushoma pane kwecladding, saka chiedza chichapinda mukati mese uye simba rayo rechiedza rinopfuudzwa zvakanyanya mukati mecore. Nekuda kwekudzokorora kwemukati mese, chiedza chinogona kupfuudzwa kubva kumugumo mumwe kuenda kune mumwe.

2. Mafiber e optical anopatsanurwa sei?

Yakarongwa nenzira yekutumira: fiber yemodhi imwe chete uye fiber yemodhi dzakawanda.
Fiber yemhando imwe chete ine dhayamita diki yepakati uye inogona kungotumira mafungu echiedza mune imwe chete.
Fiber yeMultimode ine dhayamita yakakura uye inogona kutumira mafungu echiedza nenzira dzakasiyana-siyana.
Unogonawo kusiyanisa fiber yemhando imwe chete kubva kune fiber yemhando dzakawanda neruvara rwechitarisiko chayo:
Zvizhinji zve fiber dzemaziso Mafiber emhando imwe chete ane jekete yeyero nebhuruu, uye core yetambo i9.0 μm. Kune mawavelength maviri epakati efiber yemhando imwe chete: 1310 nm uye 1550 nm. 1310 nm inowanzo shandiswa pakutumira mapfupi, epakati, kana kure, uye 1550 nm pakutumira marefu uye kure kure. Kureba kwekutumira kunoenderana nesimba rekutumira remodule ye optical. Kureba kwekutumira kwechiteshi che1310 nm chemhando imwe chete i10 km, 30 km, 40 km, nezvimwewo, uye kureba kwechiteshi chechiteshi che1550 nm chemhando imwe chete i40 km, 70 km, 100 km, nezvimwewo.

Mafiber eMultimode optical anowanzo kuve eorenji/grey ane maconnector matema/beige, uye dhayamita dzepakati i50.0 μm uye 62.5 μm. Hurefu hwepakati hwefiber yemultimode hunowanzova 850 nm. Daro rekutumirwa kwefiber yemultimode optical ripfupi, kazhinji mukati me500 m.

Kurongwa zvichienderana nezvinodiwa zvepasi rose zveITU-T: G.651, G.652, G.653, G.654, G.655, G.656, G.657.