Open AccessWDM/TDM PON experiments using the AWG free spectral range periodicity to transmit unicast and multicast data
Author(s) -
Carlos Bock,
Josep Prat
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.002887
Subject(s) - multicast , unicast , wavelength division multiplexing , transmission (telecommunications) , computer science , optics , computer network , passive optical network , free spectral range , electronic engineering , laser , telecommunications , wavelength , physics , engineering
A hybrid WDM/TDM PON architecture implemented by means of two cascaded Arrayed Waveguide Gratings (AWG) is presented. Using the Free Spectral Range (FSR) periodicity of AWGs we transmit unicast and multicast traffic on different wavelengths to each Optical Network Unit (ONU). The OLT is equipped with two laser stacks, a tunable one for unicast transmission and a fixed one for multicast transmission. We propose the ONU to be reflective in order to avoid any light source at the Costumer Premises Equipment (CPE). Optical transmission tests demonstrate correct transmission at 2.5 Gbps up to 30 km.