Photonic differentiator employing self-induced optical modulation effect

Liao Ye, Haoran Ma, Maohui Li, Fanjie Ruan, Jianyi Yang
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Abstract

We propose and demonstrate a sub-gigahertz bandwidth photonic differentiator employing the self-induced optical modulation effect in a silicon-on-insulator micro-ring resonator. The all-passive DIFF is controlled through an all-optical pump-probe scheme. Input Gaussian-like pulses with 7.5ns pulse width are differentiated at high processing accuracy. A semi-analytical model that agrees with the experimental results is also derived. The DIFF’s energy efficiency is higher than 45%, far surpassing all previously reported schemes for sub-gigahertz bandwidth pulses. Our scheme expands the application potential of photonic DIFFs.
采用自诱导光调制效应的光子分频器
我们提出并演示了一种亚千兆带宽光子分频器,它采用了硅-绝缘体微环谐振器中的自诱导光调制效应。全无源 DIFF 通过全光泵浦-探针方案进行控制。输入脉宽为 7.5ns 的类高斯脉冲能以较高的处理精度进行分辨。此外,还推导出与实验结果一致的半分析模型。DIFF 的能效高于 45%,远远超过了之前报道的所有用于亚千兆带宽脉冲的方案。我们的方案拓展了光子 DIFF 的应用潜力。
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