Ulwazi olusisiseko lwe-fiber optics

1. Iifayibha ze-optical zidlulisela njani ukukhanya?

Ukuphunyezwa konxibelelwano ngu i-fiber optics Isekelwe kumgaqo wokubonakalisa ukukhanya ngokupheleleyo.
Xa ukukhanya kusasazeka ukuya embindini wefayibha, isalathisi sokurhawuzelela i-n1 se-fiber core sikhulu kuneso se-cladding n2, kwaye ilahleko ye-core ingaphantsi kuneye-cladding, ngoko ke ukukhanya kuya kudlula kukukhanya kwangaphakathi okupheleleyo kwaye amandla alo okukhanya adluliselwa ikakhulu kwi-core. Ngenxa yokukhanya kwangaphakathi okulandelelanayo, ukukhanya kunokudluliselwa ukusuka kwelinye icala ukuya kwelinye.

2. Iifayibha ze-optical zihlulwe njani?

Ihlelwe ngokwendlela yokudlulisela: ifayibha yemowudi enye kunye nefayibha yemowudi ezininzi.
Ifayibha yemowudi enye inobubanzi obuncinci kwaye inokudlulisa amaza okukhanya kwimowudi enye kuphela.
I-fiber ye-Multimode inobubanzi obukhulu be-core kwaye inokudlulisa amaza okukhanya ngeendlela ezahlukeneyo.
Ungahlula i-fiber yemowudi enye kwi-fiber yemowudi ezininzi ngombala wembonakalo yayo:
Uninzi lwe iifayibha ezibonakalayo Iifayibha zemowudi enye zinejakethi etyheli kunye nesixhumi esiluhlaza okwesibhakabhaka, kwaye isiseko sentambo yi-9.0 μm. Kukho ubude be-wavelengths ezimbini zemowudi enye: i-1310 nm kunye ne-1550 nm. I-1310 nm isetyenziswa ngokubanzi kwi-transmission emfutshane, ephakathi, okanye ende, kunye ne-1550 nm kwi-transmission ende ne-ultra-long-long. Umgama we-transmission uxhomekeke kumandla okudlulisa e-optical module. Umgama we-transmission we-port yemowudi enye eyi-1310 nm yi-10 km, 30 km, 40 km, njl.njl., kwaye umgama we-transmission we-port yemowudi enye eyi-1550 nm yi-40 km, 70 km, 100 km, njl.njl.

Iifayibha ze-optical ze-Multimode zininzi zi-orenji/grey ezigqunywe zizihlanganisi ezimnyama/beige, kwaye ububanzi be-core yi-50.0 μm kunye ne-62.5 μm. Ububanzi bomda obuphakathi befayibha ye-multimode buqhele ukuba yi-850 nm. Umgama wokudluliselwa kwefayibha ye-optical ye-multimode mfutshane kakhulu, ngokubanzi ngaphakathi kwe-500 m.

Uhlu ngokwemigangatho yamazwe ngamazwe ye-ITU-T: G.651, G.652, G.653, G.654, G.655, G.656, G.657.