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Calibrated Link Budget of a Silicon Photonics WDM Transceiver with SOA and Semiconductor Mode-Locked Laser

机译：具有SOA和半导体锁模激光器的硅光子WDM收发器的校准链路预算

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摘要

Based on the single channel characterization of a Silicon Photonics (SiP) transceiver with Semiconductor Optical Amplifier (SOA) and semiconductor Mode-Locked Laser (MLL), we evaluate the optical power budget of a corresponding Wavelength Division Multiplexed (WDM) link in which penalties associated to multi-channel operation and the management of polarization diversity are introduced. In particular, channel cross-talk as well as Cross Gain Modulation (XGM) and Four Wave Mixing (FWM) inside the SOA are taken into account. Based on these link budget models, the technology is expected to support up to 12 multiplexed channels without channel pre-emphasis or equalization. Forward Error Correction (FEC) does not appear to be required at 14 Gbps if the SOA is maintained at 25 °C and MLL-to-SiP as well as SiP-to-SOA interface losses can be maintained below 3 dB. In semi-cooled operation with an SOA temperature below 55 °C, multi-channel operation is expected to be compatible with standard 802.3bj Reed-Solomon FEC at 14 Gbps provided interface losses are maintained below 4.5 dB. With these interface losses and some improvements to the Transmitter (Tx) and Receiver (Rx) electronics, 25 Gbps multi-channel operation is expected to be compatible with 7% overhead hard decision FEC.
机译：基于具有半导体光放大器（SOA）和半导体锁模激光器（MLL）的硅光子（SiP）收发器的单通道表征，我们评估了相应的波分复用（WDM）链路的光功率预算，其中存在罚款介绍了与多通道操作有关的极化和极化分集的管理。特别是，要考虑信道串扰以及SOA内部的交叉增益调制（XGM）和四波混频（FWM）。基于这些链路预算模型，该技术有望支持多达12个多路复用通道，而无需通道预加重或均衡。如果SOA保持在25°C，并且MLL到SiP以及SiP到SOA的接口损耗可以保持在3 dB以下，则在14 Gbps时似乎不需要前向纠错（FEC）。在SOA温度低于55°C的半冷却运行中，预计多通道运行将与标准802.3bj Reed-Solomon FEC兼容，速度为14 Gbps，前提是接口损耗保持在4.5 dB以下。由于这些接口损耗以及对发射器（Tx）和接收器（Rx）电子设备的某些改进，预计25 Gbps多通道操作将与7％的开销硬决策FEC兼容。

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