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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 24, Iss. 7 — Jul. 1, 2006
  • pp: 2827–

Hybrid DWDM-TDM Long-Reach PON for Next-Generation Optical Access

Giuseppe Talli and Paul D. Townsend

Journal of Lightwave Technology, Vol. 24, Issue 7, pp. 2827- (2006)


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Abstract

A novel long-reach passive optical network (PON) architecture based on hybrid dense wavelength-division multiplexing (DWDM) and time-division multiplexing (TDM) is presented as a possible candidate for the next generation of optical access networks. The approach combines access and backhaul functions in a single optical network infrastructure that links end customers directly to core networks without the need for intermediate electronic conversions. A centralized optical carrier distribution and wavelength-independent remote modulation scheme is employed to avoid the potential inventory and deployment costs associated with the use of wavelength-specific lasers in the customer transmitter (TX). The customer TX is based on an electroabsorption modulator (EAM) monolithically integrated with two semiconductor optical amplifiers (SOAs), providing sufficient net gain and bandwidth to support large splitting factors and upstream bit rates up to 10 Gb/s. The experimental results reported show that the network, with a total reach of 100 km and an upstream bit rate of 10 Gb/s, can potentially support 17 TDM PONs operating at different wavelengths each with up to 256 customers, giving an aggregate number of 4352 customers in total.

© 2006 IEEE

Citation
Giuseppe Talli and Paul D. Townsend, "Hybrid DWDM-TDM Long-Reach PON for Next-Generation Optical Access," J. Lightwave Technol. 24, 2827- (2006)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-24-7-2827


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