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基于超连续谱的全光多通道ROF系统光源的产生

DOI: 10.13190/jbupt.201102.67.liwj, PP. 67-70

Keywords: 超连续谱,光载射频传输,取样光纤光栅

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Abstract:

提出一种基于超连续谱梳状切割方案的多通道光载射频传输(ROF)系统光源全光生成方法.实验利用飞秒光脉冲经过2段长5m、色散符号相反的高非线性光子晶体光纤,在1550nm的通信波段产生了带宽超过170nm的超连续谱.使用本实验室自行设计、制作的取样光纤光栅对所得超连续谱进行滤波,产生了20个波长、峰值波动为±03dBm的多波长梳状光谱,将每2个相邻波长滤出,即可作为ROF系统的一路光载毫米波,共可产生10路.结果表明,所产生的10路光载毫米波峰值波动小,调制深度大,每波长线宽窄,而且整个系统结构简单,插入损耗小,易于集成.

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