WDM yog wavelength division multiplexing, muab faib ua DWDM thiab CWDM.
WDM tuaj yeem muab faib ua CWDM (Sparse Wavelength Division Multiplexing) thiab DWDM (Dense Wavelength Division Multiplexing). Lub sijhawm channel ntawm CWDM yog 20nm, thiab lub sijhawm luv ntawm DWDM yog los ntawm 0.2nm txog 1.2nm, yog li txheeb zeDWDM, CWDM yog hu ua sparse wavelength division multiplexing technology.
DWDM yog qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom (0.4nm lossis 0.8nm), ntau cov channel, thiab cov kev xav tau siab. Nws yog tsuas yog siv nyob rau hauv lub cev kab, tab sis kuj nyob rau hauv lub zos tes hauj lwm thiab lub nroog cheeb tsam network. High ib leeg-channel kis tus nqi thiab loj system muaj peev xwm
