光交换中基本孤子、孤子、高斯脉冲和超高斯脉冲的交换性能

Xiaomin Zeng, Wenfeng Wang
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引用次数: 0

摘要

研究了非线性定向耦合器中基孤子、广义孤子、高斯脉冲和超高斯脉冲的开关性能。当脉冲峰值功率变化时,基孤子输入呈现恒定的能量传输,这是由于基孤子的峰值功率与脉冲宽度相互关联,这两个参数共同导致能量传输恒定。在相同的峰值功率和无量纲参数(色散长度和耦合系数的乘积)的情况下,基本孤子、广义孤子和高斯孤子的输入将表现出相似的传输特性。在准连续波耦合情况下,超高斯输入具有比其他脉冲曲线更好的开关性能,但在脉冲耦合情况下,由于其频谱较宽,将观察到较差的特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Switching Performance of the Fundamental Soliton, Soliton, Gaussian Pulse and Super-Gaussian Pulse in an Optical Switching
The switching performance of the fundamental soli- ton, generalized soliton, Gaussian and super-Gaussian pulses in a nonlinear directional coupler is examined respectively. The fundamental soliton input shows a constant energy transmission while the pulse peak power varies, due to the fact that the peak power and the pulse width of the fundamental soliton are related to each other, thus these two parameters together resulting in a constant energy transmission. With the same peak power and a dimensionless parameter: the product of the dispersion length and coupling coefficient, the fundamental soliton, generalized soliton and Gaussian inputs will show similar transmission features. In the quasi-cw coupling case, the super- Gaussian input has much better switching performance than other pulse profiles as expected, but for the pulse coupling case, worse features will be observed due to its much broad spectrum.
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