In this work we experimentally demonstrate the compensation of nonlinearities introduced by a semiconductor optical amplifier (SOA) operating as a power booster in a field-modulated direct detection fiber-optic system transmitter. We show that a combination of digital pre -compensation to deal with SOA nonlinearities, and digital post -compensation after Kramers-Kronig receiver for mitigating the impacts of chromatic dispersion and signal-signal beat interference (SSBI) is an effective scheme to gain ∼3dB in ROSNR in presence of SOA nonlinearity at 3dB of gain compression.

中文翻译：

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场调制直接检测系统中 SOA 引起的非线性的数字补偿

在这项工作中，我们通过实验证明了由半导体光放大器 (SOA) 引入的非线性补偿，该放大器在场调制直接检测光纤系统发射器中用作功率放大器。我们展示了数字的组合处理 SOA 非线性的预补偿和数字 Kramers-Kronig 接收器后的后补偿用于减轻色散和信号-信号差拍干扰 (SSBI) 的影响，是在 3dB 增益压缩下存在 SOA 非线性的情况下在 ROSNR 中获得 ~3dB 的有效方案。