摘要
利用传统的脉冲堆积方法进行脉冲整形时,由于拍频效应会使得堆积出来的整形脉冲出现强度起伏,由于光谱干涉效应会使得堆积出来的脉冲光谱出现强度起伏。针对上述问题,提出了一种基于波分复用思想的啁啾脉冲堆积脉冲整形方法。利用该方法对啁啾脉冲堆积脉冲整形问题展开了理论分析与数值模拟,并将结果与传统的啁啾脉冲堆积脉冲整形技术进行了对比。结果表明,基于波分复用思想的啁啾脉冲堆积脉冲整形方法可以有效地降低拍频效应,得到更为平滑的整形脉冲;且波长间隔越大,脉冲平滑效果就越好。另外,基于波分复用思想的啁啾脉冲堆积脉冲整形方法还可以有效地降低或消除频谱干涉效应。
For the case of pulse shaping by the usual pulse stacking scheme, the beat effect brings intensity fluctuation to the shaped pulse, and the spectrum interference effect will cause intensity fluctuation of the spectrum of the shaped pulse. To solve these problems, a pulse stacking scheme based on the wavelength division multiplexing （WDM） is proposed. Theoretical analysis and numerical simulation are developed on this scheme and this scheme is compared with the usual pulse stacking scheme. The results show that the pulse stacking scheme based on WDM can reduce the beat effect effectively, and smoother shaped pulse can be obtained. The larger the wavelength spacings are, the smoother shaped pulse we can get. Otherwise, this scheme can also reduce or eliminate the spectrum interference effect.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2013年第5期148-153,共6页
Acta Optica Sinica
基金
宜昌市科学技术研究与开发项目(A2012-302-28)
三峡大学优秀人才科研启动基金(KJ2011B066)资助课题
关键词
光纤光学
脉冲堆积
脉冲整形
波分复用
拍频效应
频谱干涉效应
fiber optics
pulse stacking pulse shaping wavelength division multiplexing （WDM） beat effect spectrum interference effect
