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1 March 2008 Effect of absorption loss on the saturation characteristics of semiconductor optical amplifier
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Abstract
Semiconductor optical amplifiers (SOAs) as nonlinear devices always work in the gain saturation region. Therefore, the saturation gain is an important parameter of SOAs. However, the existing theoretical gain formula greatly deviates from the experimental measurements. We find experimentally that the effect of the absorption loss on the SOA gain cannot be neglected, especially when the SOA is biased into the saturation region. In this paper, considering the influence of the absorption loss, we propose a modification to the SOA gain formula in common use. We are able to validate the revised formula against the experimental measurements. Thus the theoretical formula after modification can be accurately applied to evaluate the SOA gain in practice.
©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)
Ning Guo, Songniang Fu, Ping Shum, Chongquing Wu, and Desmond R. Lim "Effect of absorption loss on the saturation characteristics of semiconductor optical amplifier," Optical Engineering 47(3), 035004 (1 March 2008). https://doi.org/10.1117/1.2896294
Published: 1 March 2008
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