The fifth-generation mobile communication (5G) technology has already started the commercialization process, providing an opportunity for the development of bearer technology innovation. The demand for new optical modules with higher speed, long distance, wide temperature range and low cost is urgent. In order to further evaluate the development level of 5G optical modules, fully support the 5G commercial process and promote the cooperation, cooperation and communication between 5G optical module industry chain partners. Recently, the IMT-2020 (5G) promotion group 5G bearer working group completed multi-vendor multi-type 5G bearers. The second evaluation of the optical module.
IMT-2020 (5G) Promotion Group 5G Bearer Working Group
The evaluation work was started at the end of June 2019, and the Institute of Technology and Standards of China Information and Communication Research Institute undertakes specific assessment tasks. Compared with the first evaluation conducted in 2018, the number of participating manufacturers, the types of optical modules tested, and test items have increased significantly. Domestic and foreign optical module manufacturers and system equipment vendors have provided strong support for testing. The reference optical module covers the typical transmission rate and distance scenarios of 5G bearer applications, including 10Gb/s adjustable 80km, 25Gb/s LAN-WDM 10km, 25Gb/s LAN-WDM 20km, 25Gb/s LAN-WDM 40km, 25Gb/ s BiDi 15km, 25Gb/s BiDi 20km, 25Gb/s DWDM 10km, 25Gb/s adjustable 10km, 50Gb/s PAM4 10km, 50Gb/s PAM4 40km, 50Gb/s PAM4 BiDi 10km, single wave 100Gb/s 10km, etc. 12 Types, including WDM type, wavelength adjustable type, 50Gb/s PAM4 BiDi 10km, single wave 100Gb/s 10km, etc. are all new module types.
The second evaluation project of the 5G optical module mainly includes the key parameters of the optical interface, the key parameters of the electrical interface, the transmission performance and the interoperability of multiple manufacturers. The optical pressure eye, the dispersion cost and the wavelength tuning time are new parameters for the optical interface. The results show that the samples of the reference optical module as a whole meet the relevant requirements of the IEEE 802.3 standard and draft, CCSA industry standards and drafts, etc., and the interoperability and device compatibility of the module have been significantly improved compared with the first test. There are still some problems to be solved in the individual modules of optoelectronic interface, long-term stability, interoperability, equipment and instrument compatibility. Through this evaluation, the latest 5G bearer optical module diversified technical solutions and industrialization development level are further verified. At the same time, the related technologies and industry maturity of 5G bearer optical modules will be accelerated, which will provide strong support for 5G commercial deployment.