Design of 400 Gbit/s QSFP-DD SR8 Optical Transceiver Module

PENG Jia-hui; SUN Li-ping; FU Yong-an; ZHANG Er-kang; ZHANG De-ling; NI Peng-yuan

doi:10.13756/j.gtxyj.2022.03.010

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Design of 400 Gbit/s QSFP-DD SR8 Optical Transceiver Module

更新时间：2022-06-15

- Design of 400 Gbit/s QSFP-DD SR8 Optical Transceiver Module
- Study on Optical Communications Issue 3, Pages: 55-60(2022)
- 作者机构：
  
  1.武汉邮电科学研究院，武汉　430074
  2.武汉光迅科技股份有限公司，武汉　430074
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2022.03.010
  CLC： TN256
- Published：10 June 2022，
  
  Received：29 October 2021，
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PENG Jia-hui, SUN Li-ping, FU Yong-an, et al. Design of 400 Gbit/s QSFP-DD SR8 Optical Transceiver Module. [J]. Study on Optical Communications (3):55-60(2022)
DOI：

PENG Jia-hui, SUN Li-ping, FU Yong-an, et al. Design of 400 Gbit/s QSFP-DD SR8 Optical Transceiver Module. [J]. Study on Optical Communications (3):55-60(2022) DOI： 10.13756/j.gtxyj.2022.03.010.

摘要

随着第五代移动通信(5G)网络全面部署，光通信产业进入到全面快速发展的阶段。根据数据中心光模块的市场需求，光模块在未来必然向高速率和低价格方向发展。文章所研究的400 Gbit/s双密度四通道小型可插拔封装(QSFP-DD)光收发模块采用近高斯光束理论进行光路设计，并通过ZEMAX软件进行光路仿真分析，使用优化函数对球面参数进行优化，最终得到耦合效率为74.8%，分析不同偏移下的耦合效率以得到误差范围。对接触面的菲涅尔反射进行分析，对比不同研磨角度下的器件性能以及模块高温传纤测试，通过对比选择斜8 °进行适配。根据实验结果对比协议要求，文章的光路设计搭配斜8 °的光纤可以很好地满足使用场景。

Abstract

With the full deployment of 5th generation mobile communication network

the optical communication industry has entered the stage of comprehensive and rapid development. According to the demand of data center optical module market

the optical module will develop to high speed and low price in the future. The 400 Gbit/s Quad Small Form Factor Pluggable-Double Density (QSFP-DD) studied in this paper is based on the theory of near Gauss Beam. The optical path is designed and simulated by ZEMAX software

and the spherical parameters are optimized by the optimization function. The coupling efficiency is 74.8%

and the coupling efficiency under different offset is analyzed to get the error range. After analyzing the Fresnel reflection of the contact surface

and comparing the performance of the device under different grinding angles and the high-temperature fiber transmission test of the module

an oblique 8 ° for adaptation is selected. According to the requirements of the protocol

the optical design of this paper with 8 ° angle optical fiber can meet the requirements of the use of the scene.

关键词

数据中心光通信400 Gbit/s光模块光路仿真回波损耗

Keywords

dater centeroptical communication400 Gbit/s optical modulesimulation of light pathreturn loss

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