All-optical computation system for solving differential equations based on optical intensity differentiator

作者:Tan Sisi*; Wu Zhao; Lei Lei; Hu Shoujin; Dong Jianji; Zhang Xinliang
来源:Optics Express, 2013, 21(6): 7008-7013.
DOI:10.1364/oe.21.007008

摘要

We propose and experimentally demonstrate an all-optical differentiator-based computation system used for solving constant-coefficient first-order linear ordinary differential equations. It consists of an all-optical intensity differentiator and a wavelength converter, both based on a semiconductor optical amplifier (SOA) and an optical filter (OF). The equation is solved for various values of the constant-coefficient and two considered input waveforms, namely, super-Gaussian and Gaussian signals. An excellent agreement between the numerical simulation and the experimental results is obtained.