We demonstrate that spectral peak power of negatively chirped optical pulses can acquire a blueshift after amplification by a semiconductor optical amplifier. The central wavelength of a transform limited optical pulse translates over 20 nm towards a shorter wavelength after propagation in a single-mode fiber and semiconductor optical amplifier. A chirped Gaussian pulse with full width at half maximum 1 ps and dimensionless chirp parameter ${\rm{C}} = - {{20}}$ can be blueshifted by 5 THz.

中文翻译：

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半导体光放大器中的非线性光谱蓝移

我们证明了负啁啾光脉冲的光谱峰值功率在被半导体光放大器放大后可以获得蓝移。在单模光纤和半导体光放大器中传播后，变换受限光脉冲的中心波长将超过 20 nm 转换为更短的波长。具有半高全宽 1 ps 和无量纲 chirp 参数${\rm{C}} = - {{20}}$的啁啾高斯脉冲可以蓝移 5 THz。