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A WDM Passive Optical Network With Polarization-Assisted Multicast Overlay Control

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2 Author(s)
Yang Qiu ; Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, China ; Chun-Kit Chan

We propose a novel wavelength-division-multiplexed passive optical network which supports simultaneous delivery of 10-Gb/s point-to-point downstream and upstream data as well as 10-Gb/s downstream multicast data. The multicast overlay control is achieved by a polarization-assisted scheme at the optical line terminal (OLT). A separate lightpath is provided for the downstream multicast differential phase-shift keying (DPSK) data without additional light sources. The upstream amplitude-shift keying signal at the optical network unit is superimposed onto the received multicast DPSK signal before being transmitted back to the OLT.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 16 )