We introduce an analytical model describing the statistical and spectral properties of laser phase noise induced intensity noise in ring-resonator-based modulation. The model is validated with single sideband orthogonal frequency division multiplexing (SSB-OFDM) implemented with a silicon photonics resonantly-assisted Mach-Zehnder modulator (RA-MZM). Excellent agreement of experimental data with full link simulations, in which phase noise conversion is treated with the analytical model, confirms its validity. Moreover, we demonstrate 30 Gb/s raw data rate transmission with SSB-OFDM over 20 km of single-mode fiber with a bit error ratio below the 20% forward error correction (FEC) limit for three independently run channels of the RA-MZM, each supplied with off-the-shelf 1 MHz linewidth distributed feedback lasers.

中文翻译：

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环形谐振器辅助直接检测数据传输中的激光相位噪声

我们引入一个分析模型，描述基于环形谐振器的调制中激光相位噪声引起的强度噪声的统计和光谱特性。该模型通过单边带正交频分复用（SSB-OFDM）进行了验证，该单边带采用硅光子共振辅助Mach-Zehnder调制器（RA-MZM）实现。实验数据与全链路仿真（通过分析模型处理相位噪声转换）的极佳一致性，证实了其有效性。此外，我们演示了在20 km单模光纤上使用SSB-OFDM的30 Gb / s原始数据速率传输，对于三个独立运行的RA-MZM信道，误码率低于20％前向纠错（FEC）限制，每个都配有现成的1 MHz线宽分布式反馈激光器。