Abstract
This paper investigates the performance of an all-optical method for
amplification gain control to be applied in the next generation of optical
networks. An erbium-doped fiber amplifier is implemented in a simple and
passive all-optical configuration known as optical gain-clamped optical
amplifier (OA). The paper investigates the dynamic performance of the OA and
discusses the interplay of amplifier dynamics with different traffic
statistics. The investigation concerns exhaustive characterization of bit
error rate performances under typical optical burst switching (OBS) traffic
as well as special case of sudden power variation at the amplifier input.
All obtained results show a reduction in the amplifier output power overshot
compared to the case where the same OA operates without any gain
stabilization technique. As an example, in the typical OBS traffic scenario,
a reduction of 3 dB is observed.
© 2009 IEEE
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