级联二阶非线性全光波长转换技术  

Study of all-optical wavelength conversion technology based on the cascaded second-order nonlinear effect

作　　者：于文兵[1] 夏守之[1] 

机构地区：[1]武汉工程大学理学院,湖北武汉430074

出　　处：《武汉工程大学学报》2008年第1期113-116,共4页Journal of Wuhan Institute of Technology

摘　　要：分析了级联二阶非线性全光波长转换中产生有限的泵浦与信号光带宽的原因,提出与论证了在准相位匹配光栅波导中引入非周期性分布的π相移域来增加泵浦波长可变范围的方法.结果表明可使波长调谐曲线的宽度和平坦性得到很大提高,泵浦带宽增加约4倍.The paper analyzes the reason of producing the limited pump bandwidth and signal bandwidth on all-optical wavelength conversion based on the cascaded second-order nonlinear effect, and proves the function of increasing the variable pump wavelength range if the n relative phase shift nonperiodically is introduced in QPM grating waveguides. The results show a flat tuning curves over a wide bandwidth are achieved,and the pump bandwidth increased by over 400%.

关 键 词：全光波长转换器 差频效应 准相位匹配 

分 类 号：TN913.7[电子电信—通信与信息系统]