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The dynamic characteristics of a gain saturated semiconductor laser amplifier with 1.47-μm pump light are described. In addition to improving the saturation output power, the pump light injection shortens the gain response time. Bit-error-rate measurements show that signal degradation, induced for a high-bit-rate signal amplified under the gain saturated condition, becomes less with the pump light injection.
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Inoue et al. (1996) studied this question.
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