Research on SFP56 50 Gbit/s 40 km Optical Module based on QSFP

HE Bao-feng; CAO Zhen; ZHAO Cong; WANG Feng

doi:10.13756/j.gtxyj.2023.01.009

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Research on SFP56 50 Gbit/s 40 km Optical Module based on QSFP

更新时间：2023-01-16

- Research on SFP56 50 Gbit/s 40 km Optical Module based on QSFP
- Study on Optical Communications Issue 1, Pages: 68-72(2023)
- 作者机构：
  
  1.武汉邮电科学研究院，武汉　430074
  2.Molex有限公司，武汉　430074
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2023.01.009
  CLC： TN256
- Published：10 February 2023，
  
  Received：13 April 2022，
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何保峰，曹珍，赵聪，等.基于QSFP封装的SFP56 50 Gbit/s 40 km光模块研究[J].光通信研究，2023(1)：68-72

HE B F, CAO Z, ZHAO C, et al.Research on SFP56 50 Gbit/s 40 km Optical Module Based on QSFP[J]. Study on Optical Communications, 2023(1):68-72
何保峰，曹珍，赵聪，等.基于QSFP封装的SFP56 50 Gbit/s 40 km光模块研究[J].光通信研究，2023(1)：68-72 DOI： 10.13756/j.gtxyj.2023.01.009.

HE B F, CAO Z, ZHAO C, et al.Research on SFP56 50 Gbit/s 40 km Optical Module Based on QSFP[J]. Study on Optical Communications, 2023(1):68-72 DOI： 10.13756/j.gtxyj.2023.01.009.

摘要

现如今处于第五代移动通信技术（5G）网络发展建设的重要阶段，前传网建设中带宽需求大、光模块成本高和铺设难度大等问题亟待解决。已知四通道小型可插拔（QSFP）封装具有4个通道，而传统的QSFP28 50 Gbit/s光模块设计方案只使用了其中的两个通道。文章选用比QSFP封装更小的小型可插拔（SFP）封装制成50 Gbit/s光模块，底面积减小了40.5%，体积减小了52.2%，功耗减少了42.1%，传输相同距离光模块成本减少了73.4%。使用4阶脉冲幅度调制（PAM4）技术实现25 Gbit/s光器件传输50 Gbit/s信号，达成了单波长速率翻倍。通过对比测试，常温发射机色散眼图闭合四相（TDECQ）减小了20.5%，灵敏度提高了0.6 dB，且其余各项参数均满足电气与电子工程师协会（IEEE）802.3cd中50 GE以太网的相关要求，能够稳定进行40 km信息传输。

Abstract

Nowadays

it is in an important stage of the development and construction of the 5th Generation Mobile Communication Technology (5G) network

and the problems such as large bandwidth demand

high cost of optical modules and difficulty in laying in the construction of fronthaul networks need to be solved urgently. Quad Small Form-factor Pluggable (QSFP) packages are known to have four channels

while traditional QSFP28 50 Gbit/s optical module designs use only two of them. In this study

a Small Form-factor Pluggable (SFP) package smaller than the QSFP package is used to make a 50 Gbit/s optical module

which reduced the bottom area by 40.5%

the volume by 52.2%

the power consumption by 42.1%

and the cost of transmitting the same distance optical module by 73.4%. 4 Pulse Amplitude Modulation (PAM4) technology enables 25 Gbit/s optical devices to transmit signals at 50 Gbit/s

doubling the single wavelength rate. Through the comparative test

the room temperature Transmitter Dispersion Eye Closure Quaternary (TDECQ) is reduced by 20.5%

the sensitivity is increased by 0.6 dB

and the remaining parameters meet the relevant requirements of Institute of Electrical and Electronics Engineers (IEEE) 802.3cd 50 GE Ethernet

which can stably transmit distance of 40 km.

关键词

4阶脉冲幅度调制发射机色散眼图闭合四相直调激光器外调激光器

Keywords

PAM4TDECQdirectly modulated lasersexternal modulated laser

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肖刚, 马洪勇, 胡毅, 等. 一种用于400 Gbit/s光模块测试的低成本PAM4信号BERT[J]. 光通信技术, 2021, 45(10): 19-23.

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