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Employing feed-forward downstream cancellation in optical network units for 2.5G/1.25G RSOA-based and 10G/10G REAM-based Passive Optical Networks for efficient wavelength reuse

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3 Author(s)
Bernhard Schrenk ; Universitat Politécnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain ; Jose A. Lazaro ; Josep Prat

Optical Network Units for Next-Generation Passive Optical Networks with wavelength reuse are investigated for asymmetrical 2.5 G/1.25 G and symmetrical 10 G/10 G down- and upstream data rates. The transmission performance was enhanced by a feed-forward cancellation circuitry adapted to an RSOA and an REAM used as remodulator. The range of downstream extinction ratios for error-free upstream transmission at BER of 10-10 was extended from 3 to 4 dB for the RSOA-based ONU and from 1.5 to 3 dB for the REAM-based ONU.

Published in:

2009 11th International Conference on Transparent Optical Networks

Date of Conference:

June 28 2009-July 2 2009