论文标题
C频段64 gbit/s光学OOK系统的自适应通道匹配检测超过100公里分散链接的链接
Adaptive Channel-Matched Detection for C-Band 64-Gbit/s Optical OOK System over 100-km Dispersion-Uncompensated Link
论文作者
论文摘要
在本文中，我们提出了在100 km色散无密度的链接上，提出了用于C波段64 Gbit/s强度调节和直接检测（IM/DD）的自适应通道匹配检测（ACMD）。提出的ACMD可以根据信道和噪声特征来自适应地补偿大多数链路扭曲，其中包括多项式非线性均衡器（PNLE），决策反馈均衡器（DFE）和最大似然序列估计（MLSE）。根据通道特性，PNLE消除了线性和非线性畸变，而遵循的DFE补偿了由色散引起的光谱无效。最后，基于噪声特性，后过滤器可以使用MLSE来使噪声白色，以实现最佳信号检测。据我们所知，我们在100 km的分散量无补偿的链路上提出了创纪录的C波段64 gbit/s im/dd光学OOK系统，该链接仅使用接收器端的拟议的ACMD实现7 \％硬解决误差校正限制。总之，基于ACMD的C波段64 gbit/s光学OOK系统具有未来光学互连的巨大潜力。
In this paper, we propose adaptive channel-matched detection (ACMD) for C-band 64-Gbit/s intensity-modulation and direct-detection (IM/DD) optical on-off keying (OOK) system over a 100-km dispersion-uncompensated link. The proposed ACMD can adaptively compensate most of the link distortions based on channel and noise characteristics, which includes a polynomial nonlinear equalizer (PNLE), a decision feedback equalizer (DFE) and maximum likelihood sequence estimation (MLSE). Based on the channel characteristics, PNLE eliminates the linear and nonlinear distortions, while the followed DFE compensates the spectral nulls caused by chromatic dispersion. Finally, based on the noise characteristics, a post filter can whiten the noise for implementing optimal signal detection using MLSE. To the best of our knowledge, we present a record C-band 64-Gbit/s IM/DD optical OOK system over a 100 km dispersion-uncompensated link achieving 7\% hard-decision forward error correction limit using only the proposed ACMD at the receiver side. In conclusion, ACMD-based C-band 64-Gbit/s optical OOK system shows great potential for future optical interconnects.
