基于半导体光放大器瞬态交叉相位调制效应的高速反相和同相波长转换的研究  

Investigation on inverted and non-inverted wavelength conversion based on transient cross phase modulation of semiconductor optical amplifier

作　　者：董建绩[1] 张新亮[1] 付松年[2] 沈平[2] 黄德修[1] 

机构地区：[1]华中科技大学光电子科学与工程学院,武汉430074 [2]南洋理工大学网络技术研究中心,新加坡637553

出　　处：《物理学报》2007年第4期2250-2255,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60577007);湖北省杰出青年基金(批准号:2006ABB017);教育部新世纪优秀人才支持计划(批准号:NCET-04-0715)资助的课题.~~

摘　　要：采用半导体光放大器(SOA)中的瞬态交叉相位调制效应是实现高速全光信号处理的有效途径.利用SOA和带宽为0.4nm的窄带滤波器同时实现了重复频率为10GHz、脉冲宽度为10ps的同相和反相全光波长转换.当滤波器的中心波长相对于探测光载波波长蓝移0.25nm或者红移0.05nm时,得到反相波长转换;当滤波器的中心波长相对于探测光波长蓝移0.29nm或者红移0.25nm时,得到同相的波长转换.同时用数值模拟了从同相到反相波长转换的极性演化过程,理论分析和实验结果基本相符.All-optical wavelength conversion based on transient cross phase modulation of semiconductor optical amplifier （SOA） is a promising approach to achieve high-speed all-optical signal processing. We experimentally demonstrate inverted and non-inverted wavelength conversion （WC） based on single SOA and an optical bandpass filter with 0.4 nm bandwidth. When the central wavelength of the following filter is blue shifted by 0.25 nm or red shifted by 0.05 nm with respect to the wavelength of probe signal, the WC is inverted. When the filter detuning is blue shifted 0.29 nm or red shifted 0.25 nm, the WC is non-inverted. The polarity evolution from inverted WC to non-inverted WC is also presented with numerical simulation. The obtained results are in good agreement with the experiment.

关 键 词：半导体光放大器 波长转换 瞬态交叉相位调制 

分 类 号：TN929.1[电子电信—通信与信息系统] TN722[电子电信—信息与通信工程]