摘要
对光纤四波混频(FWM)效应的机理及相位匹配条件进行了分析,讨论了两种利用FWM进行波长变换的方案:在零色散波长附近利用相位匹配实现波长变换和利用泵浦光强度的非线性效应来实现宽带波长变换.探讨了此项技术目前存在的问题:入射光与泵浦光的偏振态不匹配;信号和泵浦之间的相干程度.提出采用短的高非线性光纤是一种有效的解决方法.
The mechanism of the effect of four wavelength mixing (FWM) in optical fiber and the conditions of phase matching are analyzed,followed by discussion of two schemes for wavelength conversion based on FWM such as phase matching near the wavelength of zero-dispersion and nonlinear effect of pump light. Some difficulties in this technique such as polarization and interference between incident light and pump light are also discussed.It is recognized that ultilization of a kind of short high-nonlinear optical fiber may be an effective way.
出处
《兰州理工大学学报》
CAS
北大核心
2005年第1期104-106,共3页
Journal of Lanzhou University of Technology
关键词
波长变换
四波混频
非线性
相位匹配
wavelength conversion
four wave mixing
nonlinearity
phase matching
