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                                          非线性光纤
                                          高非线性光纤 (HNLF) 将高非线性系数与数值小群速度色散相结合。 光纤设计包括一个高 delta 纤芯,掺杂了 GeO2 或 Al,周围环绕着一个掺杂有氟的深凹陷环。 HNLF 有四个版本:斜率为 0.019 ps/(nm2?km) 的版本、零色散斜率版本、PM 版本和带有铝掺杂芯以提高 SBS 阈值的版本。 所有类型都具有广泛的色散值。 PM-HNLF 基于椭圆芯。 它没有任何压力棒。
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