Umuyoboro wa fibre optique

1. Uburyo bwo kohereza

Yerekeza ku buryo bwo kohereza urumuri muri fibre optique (ifishi yo gukwirakwiza amashanyarazi).Ikoreshwa rya fibre itumanaho

uburyo bugabanijwe muburyo bumwe na multimode, hamwe nuburyo bumwe bukwiranye no kohereza intera ndende na multimode ikwiranye

ihererekanyabubasha.G652D uburyo bumwe bwa fibre optique ifite diameter yibanze ya d1 ya 9 um na diameter yambarwa d2 ya 125 um.Multimode

fibre optique isanzwe igabanijwe muburyo bubiri: 62.5 / 125 cyangwa 50/125.

Guhitamo fibre optique igomba guhuza module ya optique, bitabaye ibyo bizatera igihombo cyinyongera bitewe na diameter yibanze.

Guhuza imiyoboro ya fibre optique hamwe ninsinga hamwe na diametre yibanze ntabwo byemewe.

2. Gutakaza kwinjiza

Ingano ya signal ya optique igabanya imbaraga, mubisanzwe igaragara muri decibels, mugihe ukoresheje fibre optique ihuza.Kurugero,

iyo igihombo cyo gushiramo ari 3dB, gutakaza ingufu za optique ni hafi 50%.Iyo igihombo cyo gushiramo ari 1dB, gutakaza ingufu ni hafi

20%, na IL = - 10lg (ibisohoka optique imbaraga / kwinjiza optique).

3. Garuka igihombo

Bizwi kandi nko gutakaza ibitekerezo, bivuga ibipimo byerekana ibimenyetso byerekana ibimenyetso.Igihombo cya echo gisobanura amafaranga yagaruwe na

ibimenyetso bya optique iyo bisubiye munzira yumwimerere.Mubisanzwe, uko agaciro kangana, nibyiza.Kurugero, iyo kwinjiza 1mw imbaraga, 10% byayo

bigaragarira inyuma, ni 10dB, na 0.003% bigaragarira inyuma, bikaviramo gutakaza echo hafi 45dB.RL = - 10lg (igaragaza imbaraga z'umucyo /

kwinjiza ingufu z'umucyo)

4. Ubwoko bw'isura

Ubwoko bwa fibre optique igabanijwemo PC (gusya hejuru yubuso) hamwe na APC (gusya kwa oblique spherical surface).Nyuma yo gusya APC,

urumuri rugaragara rugaruka kumuhanda wambere rwaragabanutse cyane, rufasha kunoza igihombo cyo kugaruka kwihuza