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On triplexer design for next generation Ethernet Passive Optical Network (EPON) systems

Santos, J. ; Hajduczenia, M.H. ; Pires, J. J. O. ; Silva, H. A. ; Monteiro, P.

On triplexer design for next generation Ethernet Passive Optical Network (EPON) systems, Proc IEEE AccessNets , Ottawa, Canada, Vol. X, pp. 1 - 8, August, 2007.

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Abstract
The standardization effort targeting 10 Gbit/s EPON systems, together with the requirement for coexistence with the legacy IEEE 802.3ah compliant equipment, impose a set of very tight requirements in terms of wavelength allocation plan for future EPON systems and significant limitations in terms of triplexer design for Optical Network Unit (ONU) modules, where 2 wavelength channels (or 3, when an analog video overlay is used on the downstream) must be properly separated with minimum power and quality loss, providing also a high quality transmission window for the upstream 1310 nm signal. In this paper, we look closer at the possible triplexer and filter design for emerging 10 Gbit/s EPON systems in the light of current IEEE 802.av Task Force activities and technical limitations of the Wavelength Division Multiplexing (WDM) filter design process.