We propose a subcarrier‐switching method for all‐optical orthogonal frequency division multiplexing (AO‐OFDM) system. In addition, analysis of the affected neighboring subcarriers, along with the subcarriers being added or dropped, is carried out in a comprehensive manner. After switching operation four times, target subcarrier can still have a Q value larger than 27, while Q value of neighboring orthogonal subcarriers exceeds 31 in AO‐OFDM system with 16 orthogonal subcarriers.

中文翻译：

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全光正交频分复用系统中子载波的重配置和切换研究

我们提出了一种用于全光正交频分复用（AO-OFDM）系统的子载波切换方法。另外，以综合的方式对受影响的相邻子载波以及被添加或删除的子载波进行分析。在四次切换操作之后，目标子载波的Q值仍可以大于27，而在具有16个正交子载波的AO-OFDM系统中，相邻正交子载波的Q值超过31。