L-band, or long band, is a wavelength band immediately adjacent to the Conventional band (C-band) initially used to expand the capacity of terrestrial DWDM optical networks. It is now being introduced to submarine cable operators to do the same thing—expand the total capacity of a submarine cable.
Read moreWhat will C-band be used for?
C-band is currently used for the “satellite downlink ” for broadcast television distribution.
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