Abstract
Amplitude data erasure for wavelength reuse using an ultralong semiconductor optical amplifier (UL-SOA)
in saturation is demonstrated for optical carriers modulated up to 56 Gb/s (NRZ). The erasing performance
efficiencies with different input bit rates are presented, as well as the influences of parameters such as input
(amplitude) extinction ratio, optical power, wavelength, and UL-SOA bias current. Bit error rate (BER) curves show
that the remodulated (upstream) signal has enough quality to be applied in wavelength division multiplexing-passive
optical networks (WDM-PON) systems, when very high bit rates or high input extinction ratio are needed and spectral
broadening in the erased carrier could be accepted.
© 2013 IEEE
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