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本文利用非线性光纤环路镜成功地将中心波长为１５３３．９ｎｍ 的２０Ｇｂ／ｓ（８×２．５Ｇｂ／ｓ）的ＯＴＤＭ 信号变换到１５５３．３ｎｍ 和１５６０．３ｎｍ ，变换的最大间距达２６ｎｍ ，测量了变换后信号光的眼图和光谱图，并对实验结果进行了分析．
In this paper, a 20Gb / s (8 × 2.5Gb / s) OTDM signal with a center wavelength of 1533.9nm has been successfully transformed to 1553.3nm and 1560.3nm using non-linear fiber loop mirror. The maximum conversion distance is up to 26nm, The eye diagram and the spectrogram of the transformed signal light were measured, and the experimental results were analyzed.