50G optical module refers to the optical module with a transmission rate of 50Gbps/s. its package type is SFP56, which is an important link between 10G and 100G Ethernet connection standards. 50Gbps per channel technology will become the foundation of future 400gbps Ethernet standard 50Gbps, 50Gbps will be implemented later to replace the existing 10Gbps rate.

In 5G era, 50G optical modules will be used on a large scale, and the demand for 25G / 50G optical modules will reach 10 million level only in 5G forward transmission field, At the same time, the field of media transmission is also a new growth point.

The 50G optical module based on single-mode fiber transmission is mainly concentrated in the telecommunication field: in order to save 5G deployment cost, combined with the basic rate of 25Gbps, a small number of 50G SR optical modules will be used in the convergence layer of 5G. Next, ETU-Link will introduce the characteristics of 50G SR optical module.

Characteristics of 50GE SFP56 SR optical module

◆ SFP56 package with hot pluggable

◆ 850nm VCSEL laser and PIN photodetector
◆ It meets SFP56 MSA and IEEE 802.3cd 50GBASE-SR Ethernet standard
◆ Maximum speed up to 53.125Gbps（50G PAM4）
◆ The transmission distance can reach up to 70m through OM3 multimode optical fiber, 100m on OM4
◆ The maximum power consumption is less than 2W

◆ Meet RoHS environmental standards

At present, the demand of 50G optical module mainly comes from the construction of 5G carrying network. In the application scenario of data center, 50G optical module focuses on the connection between NIC and ToR in super large data center.