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Enhanced Raman amplification by conventional and hybrid photonic crystal based ring structure

机译：通过传统的和基于混合光子晶体的环结构增强拉曼放大

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摘要

In this paper, we present new structures based on ring, conventional photonic crystal and hybrid PhC for enhanced Raman amplification. The structures consist of two separate entrances for the pump and signal. In this way, only pump is coupled into the ring and signal passes through the amplified pump without creating coupling noise. Using engineered nano holes filled with optofluidic materials in the signal and pump paths, we reduce pump and signal group velocity to improve the structure and achieve larger Raman gain and less dispersion. The time evolution and propagation of picosecond signal pulses and dispersion inside the device are analyzed and Raman gain, Raman bandwidth and bit rate are studied in one-ring and two-ring structures. To model Raman amplification in these structures, Maxwell equations are solved using finite difference time domain method considering optical nonlinear parameters like two photon absorption, free carrier absorption and Kerr effect.
机译：在本文中，我们提出了基于环，常规光子晶体和混合PhC的新结构，用于增强拉曼放大。结构由两个单独的泵和信号入口组成。这样，仅泵浦耦合到环中，并且信号通过放大的泵浦而不会产生耦合噪声。在信号和泵浦路径中使用填充有光流体材料的工程纳米孔，我们降低了泵浦和信号组速度，以改善结构并获得更大的拉曼增益和更少的色散。分析了皮秒信号脉冲在器件内部的时间演化和传播以及色散，并研究了单环和双环结构中的拉曼增益，拉曼带宽和比特率。为了对这些结构中的拉曼放大建模，使用有限差分时域方法求解Maxwell方程，其中考虑了光学非线性参数，例如两个光子吸收，自由载流子吸收和Kerr效应。

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