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微分增益
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微分增益
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微分增益
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differential gain
微分增益
在半导体激光器中,增益随注有源区载流子浓度变化的规律可以用一个对数函数近似。但对于多数情况,只关心透明载流子浓度附近的增益变化,因而可以采用线性化模型描写增益随载流子浓度的变化,其斜率即为微分增益。
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