Ulusi wa mtundu umodzi: G652D vs G657A2

1/ Kodi ulusi wa single-mode ndi chiyani?

+ Ulusi wa single-mode ndi ulusi wowala womwe umapangidwa kuti unyamule kuwala kwa mode imodzi yokha - transverse mode.

+ Ulusi wamba wa single-mode optical uli ndi mainchesi apakati pakati pa 8 mpaka 10.5 μm (wamba ndi 9μm) ndi mainchesi a cladding a 125 μm.

+ OS1 ndi OS2 ndi ulusi wamba wa 9/125 μm single-mode optical. Zonsezi zimagwiritsidwa ntchito ndi ma wavelengths a 1310 nm ndi 1550 nm.

+ Ulusi wa single-mode wapangidwira kutumiza kwakutali komanso kuthamanga kwambiri, nthawi zambiri kumathandizira mtunda kuyambira 2 km mpaka 100–160 km.

Kapangidwe ka ulusi wamba wa single-mode:

Chimake:8–9 μm m'mimba mwake

Kuphimba:M'mimba mwake wa 125 μm

Chosungira:M'mimba mwake wa 250 μm

Jekete:M'mimba mwake wa 600 kapena 900 μm

2/ G652D Ulusi wa mtundu umodzi:

+ G652D Single-mode Fiber ndi mtundu wofala kwambiri wa single-mode optical fiber (SMF), wokhazikika ndi ITU-T kuti ulumikizane mwachangu komanso patali.

+ Ili ndi ukadaulo wa "madzi otsika", kuchepetsa kutayika kwa chizindikiro mu utali wa wavelength wa 1383 nm.

+ Yodziwika ndi bandwidth yayikulu, kuchepa kwa mphamvu, komanso kugwirizana kwa kumbuyo, ndi yabwino kwambiri pa ma network olumikizirana, Metropolitan Area Networks (MAN), ndi Fiber to the Home (FTTH).

3/ G657A2 Ulusi wa mtundu umodzi:

+ G.657A2 Single-mode Fiber ndi ulusi wosapindika kwambiri, wogwirizana ndi miyezo ya ITU-T, wopangidwa kuti ugwire ntchito popanda kutayika kwakukulu kwa chizindikiro pa ma radii opindika mwamphamvu (osakwana 7.5mm).

+ Imagwirizana kwathunthu ndi ulusi wa G.652D, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsa ntchito zingwe zotsika za FTTH zolemera kwambiri, mawaya amkati, komanso malo ang'onoang'ono komanso opindika kwambiri.

4/ Ulusi wa single mode G652D poyerekeza ndi G657A2: