Research on Thermal Design for QSFP+ Optical Transceiver

QSFP+ optical transceiver module as an important component of the active optical device plays a key role in the field of broadband communication network. With the increase of the data capacity of optical network, the data rate of QSFP+ optical transceiver module and the heat flux of the module increase gradually,and the thermal performance of the module becomes an important factor restricting its further development.This paper analyzes the heat transfer path of QSFP+ optical module and then establishes the thermal model of the optical module. The effects of different materials, contact thermal resistances and layouts of heating devices on the temperature field of the optical module are concluded by simulation analysis. The results show that the thermal performance of the optical module can be improved by reducing contact thermal resistance, increasing material thermal conductivity and reducing the distance between heating devices and the heat sink.