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Influence of Spectrum Location of Gigabit-Ethernet in Coexistence with Multi-Band OFDM-UWB Wireless Signals on the Long-Reach PON Performance Using Directly Modulated Lasers

Morgado, J. ; Fonseca, D. ; Cartaxo, A.

Influence of Spectrum Location of Gigabit-Ethernet in Coexistence with Multi-Band OFDM-UWB Wireless Signals on the Long-Reach PON Performance Using Directly Modulated Lasers, Proc IEEE International Topical Meeting on Microwave Photonics, Singapore, Singapore, Vol. --, pp. -- - --, October, 2011.

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Abstract
The influence of spectrum location of OFDM-based
Gigabit-Ethernet (GbE) in coexistence with multi-band
OFDM-UWB wireless signals on the performance of long-reach PON using directly modulated lasers is experimentally evaluated.
It is shown that the central frequency of the GbE signal of
1.5GHz is a good compromise in terms of transmission
performance of the coexisting OFDM-(GbE+UWB) signals. With that central frequency of the GbE signal, BERs not exceeding 1.3×10−4 are achieved by all signals for a reach of 100 km of standard single-mode fiber without dispersion compensation and an optical signal to noise ratio (OSNR) of 30dB@0.1nm, when optimized modulation indexes are used.