Abstract
Semiconductor optical amplifiers (SOAs) are now good candidates for applications in all-optical signal processing. The travelling waves effects observed in long SOAs can be used to increase the performance in applications based on cross-gain modulation and four-wave mixing (FWM). We show and explain here the nearly degenerate FWM behavior of 1 and 1.5 mm long 1.55 μm bulk SOAs which is dominated by a strong effective index modulation.
© 1998 IEEE
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