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Broadband gain-clamped linear quantum dash optical amplifiers

机译：宽带增益钳位线性量子破折号光放大器

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摘要

The linear optical gain of gain-clamped quantum dash semiconductor optical amplifiers (GCSOAs) has been investigated using the rate equation model. The gain spectrum of GCSOA for different wavelength detuning and different doping has been studied. Our analysis shows that the linear gain can be increased as the laser wavelength is detuned to high wavelength where the peak of the optical gain, which is found at wavelengths below the ground state wavelength, is shifted to lower wavelength as the laser wavelength is increased. We find that doping the dashes by either N-type or P-type enhances the linear optical gain and shifts the gain peak to lower wavelength. Moreover, we found that GCSOA with lightly N-type doping demonstrates large separation between the laser and the amplifier wavelength. Also we find that small inhomogeneous line broadening enhances the linear gain peak, shifts the gain peak to wavelength lower than the GS wavelength and widens the gain spectrum.
机译：增益钳制的量子点半导体光放大器（GCSOA）的线性光学增益已使用速率方程模型进行了研究。研究了不同波长失谐和不同掺杂下GCSOA的增益谱。我们的分析表明，当激光波长失谐至高波长时，线性增益可以增加，其中，在基态波长以下的波长处发现的光学增益的峰值随激光波长的增加而移至较低波长。我们发现，通过N型或P型对虚线进行掺杂可以增强线性光学增益，并将增益峰移至较低波长。此外，我们发现具有轻度N型掺杂的GCSOA证明了激光器与放大器波长之间的较大分隔。我们还发现，较小的不均匀线展宽会增强线性增益峰，将增益峰移至低于GS波长的波长并加宽增益谱。

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