Description
DWDM
DWDM (Dense Wavelength Division Multiplexing) is a technology used to increase the capacity of optical fiber links by transmitting multiple wavelengths of light over a single fiber. It works by using a large number of closely spaced wavelengths of light to carry different data channels, allowing multiple channels to be multiplexed (combined) onto a single fiber. DWDM typically uses wavelengths in the range of 1525 nm to 1565 nm, with a spacing of around 0.8 nm between channels.
CWDM
CWDM (Coarse Wavelength Division Multiplexing) is a technology used to increase the capacity of optical fiber links by transmitting multiple wavelengths of light over a single fiber. It works by using different wavelengths of light to carry different data channels, allowing multiple channels to be multiplexed (combined) onto a single fiber. CWDM uses a range of wavelengths, typically between 1470 nm and 1610 nm, with a 20 nm spacing between channels.
