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Improvement of Raman amplifier bandwidth by means of slow light in photonic crystal based waveguide structure

机译:通过基于光子晶体的波导结构中的慢光提高拉曼放大器带宽

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摘要

In this paper, we investigate the enhancement of Raman amplification bandwidth with self phase modulation (SPM) effect in silicon based photonic crystal waveguides. The Maxwell equations are solved using finite difference time domain method considering two photon absorption, free carrier absorption, Kerr and SPM effects. We also study the effects of shape, width and average power on the Raman amplification bandwidth. Then by changing the photonic crystal geometrical parameters, pump and signal group velocity are reduced to achieve higher Raman bandwidth.
机译:在本文中,我们研究了基于硅的光子晶体波导中具有自相位调制(SPM)效应的拉曼放大带宽的增强。考虑到两个光子吸收,自由载流子吸收,克尔和SPM效应,使用有限差分时域法求解麦克斯韦方程。我们还研究了形状,宽度和平均功率对拉曼放大带宽的影响。然后,通过改变光子晶体的几何参数,降低泵浦和信号群速度,以获得更高的拉曼带宽。

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