56 Gbaud PAM4 Real Time Optical Datacom Link

被引：1
作者：
Pertessis, John [1 ]
Datta, Shubhashish [1 ]
Joshi, Abhay [1 ]
机构：
[1] Discovery Semicond Inc, 119 Silvia St, Ewing, NJ 08628 USA
来源：
METRO AND DATA CENTER OPTICAL NETWORKS AND SHORT-REACH LINKS III | 2020年 / 11308卷
关键词：
Datacom; Scalable Platforms; Pulse Amplitude Modulation 4-level (PAM4); Linear InGaAs Photoreceiver; Automatic Gain Control (AGC); Forward Error Correction (FEC); Analog to Digital Converter (ADC); Digital Signal Processing (DSP);
D O I：
10.1117/12.2546767
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a Forward Error Correction (FEC) - assisted, 56 Gbaud PAM4 optical link having error free performance with adequate link margin of better than 6 dB. The link was formed by driving a 1550 nm Externally Modulated Laser (EML) with a commercial PAM4 transceiver chip. The optical signal was transmitted over various link lengths of dispersion compensated fiber, fed to a low-noise Linear InGaAs Photoreceiver having Automatic Gain Control (AGC), and routed back to the PAM4 transceiver chip with ADC & DSP capability. Real time bit error rate measurements demonstrate the advantage of employing linear receivers having AGC.
引用
收藏
页数：9
相关论文
共 6 条
  • [1] Recent Advances of Emerging PAM4 Signaling with Real-time Processing for 100/400Gbps Data Center Connectivity
    Chang, Frank
    [J]. NEXT-GENERATION OPTICAL NETWORKS FOR DATA CENTERS AND SHORT-REACH LINKS III, 2016, 9775
  • [2] Hong Liu, 2010, Proceedings of the 18th IEEE Symposium on High Performance Interconnects (HOTI 2010), P113, DOI 10.1109/HOTI.2010.15
  • [3] Isono H., 2018, P SPIE, V10560
  • [4] Pertessis J., 2019, P SPIE, V11136
  • [5] Pertessis J., 2018, P SPIE, V10651
  • [6] Song X., 2014, EEE8023400GBE STUD G
1