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首页> 外文期刊>International journal of applied mechanics >Demonstration of 4 x 100 Gbit/s PAM-4 Transmission Over 40 km in an IM/DD System Based on Narrow Band DMLs
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Demonstration of 4 x 100 Gbit/s PAM-4 Transmission Over 40 km in an IM/DD System Based on Narrow Band DMLs

机译:在基于窄带DMLS的IM / DD系统中,在4×100 Gbit / s PAM-4传输中的示范4×100 Gbit / s PAM-4传输

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We demonstrate a four-lane wavelength division multiplexing (WDM) intensity modulation and direct detection (IM/DD) system at O-band. The 3-dB bandwidth of directly modulated lasers (DMLs) in this experiment is only 15 GHz. To support 100-Gbit/s/lane PAM-4 transmission in each lane, digital pre-equalization and advanced receiver-side DSPs are adopted to compensate for bandwidth limitation. Moreover, semiconductor optical amplifier (SOA) is utilized at the receiver to compensate for the optical power loss during fiber transmission so that 40-km transmission distance can be achieved. To the best of our knowledge, it is the first time to successfully transmit 400-Gbit/s PAM-4 signals over 40-km SSMF with 15-GHz DMLs.
机译:我们展示了O频带的四通道波分复用(WDM)强度调制和直接检测(IM / DD)系统。 该实验中直接调制激光器(DML)的3dB带宽仅为15 GHz。 为了支持每条车道中的100-Gbit / s / Lane PAM-4传输,采用数字预均衡和高级接收器侧DSP来补偿带宽限制。 此外,在接收器处利用半导体光学放大器(SOA)以补偿光纤传输期间的光功率损耗,从而可以实现40 km传输距离。 据我们所知,这是第一次成功传输400-Gbit / s PAM-4信号以上具有15-GHz DMLS的40公里的SSMF。

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