1 tb/s converged optical metro-access transmission based on wavelength division multiplexed orthogonal frequency division multiple access passive optical network (wdm-ofdma-pon)

A Wavelength Division Multiplexed Orthogonal Frequency Division Multiple Access Passive Optical Network (WDM-OFDMA-PON), comprising:

• a CO optical line terminal (CO-OLT), including
• a OFDM transmitter coupled to an AWG and aligned onto a wavelength grid;
• a second array of continuous wave (CW) signals from lasers with upstream wavelengths combined by a channel-spaced AWG;
• and
• a diplexer or optical coupler aggregating modulated wavelengths and un-modulated carriers and transmitted over an SSMF to a local exchange (LE), where incoming signals are optically amplified and routed with a diplexer or optical coupler, AWGs, and diplexer/optical coupler into DS/US wavelength pairs for distribution to the OFDMA-PONs.