基于MWDM的25 Gbit/s TOSA设计与开发

第5代移动通信技术(5 G)前传是承载网络的重要组成部分,高精度时间同步以及海量连接的需求对接入网有了更高的要求.为了解决前传哑资源管理及光纤资源问题,中国移动提出了中等波分复用(MWDM)前传方案.针对MWDM方案的需求和5G前传推行需要降低成本的问题,文章提出了一款应用于MWDM光模块的25 Gbit/s光发射组件...

Design and Development of 25 Gbit/s TOSA based on MWDM

5th-Generation(5G)fronthaul is an important part of the bearer network.High-precision time synchronization and massive connection requirements may have higher demands on the access network.In order to solve the problems of fronthaul dumb resource management and optical fiber resources,China Mobile proposed a Medium Wavelength Division Multiplexing(MWDM)fronthaul solution.In view of the demand of MWDM scheme and the need to reduce the cost in the implementation of 5G fronthaul,a 25 Gbit/s Transmitter Optical Subassembly(TOSA)for MWDM optical module is proposed in this paper,which is packaged with low-cost and hermetic coaxial structure.Built-in thermo electric cooler is also used to support the harsh conditions of outdoor scene.This paper mainly introduces the key design and packaging form of TOSA,and optimizes its temperature control ability from the design and process.Finally,the photoelectric performance,temperature control ability and transmission performance of the sample are tested.The results show that the device has excellent performance,which also meet the SFP28 package form and IEEE 802.3 protocol standards.