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As one of the most promising next generation optical access network (OAN), flexible time and wavelength division multiplexing (TWDM) OAN can increase capacity smoothly and reallocate wavelength and timeslot resource dynamically to cope with variations in traffic pattern. However, the scheduling of both wavelength and timeslot resource becomes a critical problem. In this letter, a dynamic wavelength...
A novel ring-tree TWDM optical access network architecture using matrix optical switch and OEO wavelength converter is proposed. The architecture owns flexible on-demand wavelength and timeslot provision, OLT energy saving ability and backward compatibility.
In this paper, the requirements for next generation passive optical network (NG-PON) and evolution trends of PON are analyzed. Based on the analysis of the requirements for NGPON and the characteristics of various potential NG-PON schemes, it is believed that hybrid TDM/WDM PON will be the most promising candidate NG-PON schemes for different application scenes in the near future, and the OFDM PON...
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