双抽运光纤光参变放大的全光多波长变换与码型转换  

All Optical Multi-Wavelength Conversion and Data Format Conversion Based on Dual-Pumped Fiber Optical Parametric Amplifier

作　　者：江阳[1] 于晋龙[2] 张爱旭[2] 王文睿[2] 胡浩[2] 张立台[2] 杨恩泽[2] 

机构地区：[1]贵州大学理学院贵州省光电子技术与应用重点实验室,贵州贵阳550025 [2]天津大学电子信息工程学院光纤通信实验室光电信息技术科学教育部重点实验室,天津300072

出　　处：《光学学报》2008年第6期1051-1056,共6页Acta Optica Sinica

基　　金：国家863计划(2007AA01Z272);国家自然科学基金(60572013);贵州省国际科技合作重点项目计划(400112)资助课题

摘　　要：利用强度调制的数据信号光作为一路抽运光,与另一路直流或者正弦强度调制抽运光组合可以在双抽运光纤光参变放大过程中实现全光多波长变换或者在全光多波长变换的同时实现码型转换。理论上,从信号增益的角度分析了波长转换与码型转换的原理。实验上演示了2.5Gb/s的非归零(NRZ)码信号的全光多波长转换与到归零(RZ)码信号的转换。多波长转换实验表明:双抽运条件下的光参变过程可以实现多波长转换并得到正、反码的输出,还同时对信号有一定的再生作用。码型转换后信号的占空比为30%,消光比也得到提高。By the combination of data intensity modulated pump and continuous wave pump or sinusoidal intensity modulated pump,all optical multi-wavelength conversion and multi-wavelength conversion with data format conversion are presented by using a dual-pumped fiber optical parametric amplifier（FOPA）.The operation principle is analyzed with respect to the gain.Experimentally,the multi-wavelength conversion and multi-wavelength conversion with data format conversion between non-return-to-zero（NRZ）and return-to-zero（RZ）are demonstrated under the bit rate of 2.5Gb/s.The experimental results indicate that the dual-pumped fiber optical parametric amplifier is able to implement multi-wavelength conversion to achieve normal and invert pattern with some degree of regeneration.The data format conversion gives the signal with duty ratio of 30% and improved extinction ratio.

关 键 词：光纤通信 光参变放大 波长变换 码型转换 

分 类 号：TN929.1[电子电信—通信与信息系统]