Abstract
A passive optical network (PON) architecture based on a hybrid wavelength-division
multiplexing (WDM) and time-division multiplexing (TDM) PON system with a
remotely pumped erbium-doped fiber amplifier (EDFA) is presented as an excellent
candidate for use in a next-generation optical access network. The remotely
pumped EDFA operates as a bidirectional amplifier and provides a 15-dB gain
to both upstream signals and seed light sources, so the sensitivity of upstream
transmission is greatly improved. An upstream transmission of 1.25 Gb/s with
a low seed channel power of –14 dBm is made feasible over a total reach of 25 km for 32–WDM
channels and 16–TDM splits by the use of the remotely pumped EDFA. This
scheme has advantages that it uses a single transmission fiber for both down-
and up-stream signals and that it reduces the Rayleigh scattering contribution.
© 2008 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription