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Noise-like pulses under different intra-cavity nonlinearity
Optical Fiber Technology ( IF 2.6 ) Pub Date : 2021-04-15 , DOI: 10.1016/j.yofte.2021.102549
Chonghao Wu , Yong Yao , Qianchao Wu , Yanfu Yang , Jiajun Tian , Ke Xu

We report on the influence of the average nonlinear coefficient on noise-like pulse (NLP) in a figure-of-eight erbium-doped fiber laser. Since the nonlinear switching point of nonlinear amplifying loop mirror (NALM) shifts with distinct laser configurations, through changing the length of highly nonlinear fiber (HNLF) in NALM, properties of output pulse have been compared and analyzed. The spectral evolutions occur and the peak power of NLP presents a decline when the HNLF is lengthened in NALM. Also, the tuning range of the duration of NLP shows a difference based on the average nonlinear coefficient selected.



中文翻译:

不同腔内非线性下的类噪声脉冲

我们报告了八位数掺光纤激光器中平均非线性系数对类噪声脉冲(NLP)的影响。由于非线性放大环形镜(NALM)的非线性切换点随着不同的激光配置而发生偏移,因此通过改变NALM中的高度非线性光纤(HNLF)的长度,对输出脉冲的特性进行了比较和分析。当在NALM中延长HNLF时,会发生频谱演化,并且NLP的峰值功率会下降。同样,NLP持续时间的调整范围基于所选的平均非线性系数显示出差异。

更新日期:2021-04-16
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