• June 25. 2025

In today's era of data explosion, high-speed and stable data transmission has become a demand of various industries. As an important component of 100G network, the core component 100G QSFP28 dual-fiber optical module has attracted much attention. Today, we will deeply analyze the four mainstream models of 100G QSFP28 dual-fiber optical modules: QSFP28-100G-SR4, QSFP28-100G-LR4, QSFP28-100G-ER...

• March 26. 2025

In the field of optical communications, the demand for high-speed connections continues to surge , and 100G optical modules have become the core of building intelligent networks. Faced with a variety of models such as SR4/LR4/ER4, how should engineers choose? This article uses 5 major classification dimensions + practical selection solutions to help you overcome the selection difficulties! 1. Pack...

• January 21. 2025

In the field of high-speed data transmission, 100G QSFP28 optical modules have become a key component of network communications. With the continuous expansion of data center scale and the extension of network coverage, how to choose the right optical module - single fiber (BIDI) or multi-fiber , has become an important issue that many network engineers and decision makers need to carefully weigh. ...

• October 29. 2024

In the field of optical communications, technological innovations are changing rapidly as data transmission rates continue to increase. In recent years, higher data rate pluggable optical modules have evolved rapidly, and the complexity of their design and interaction with switch and router hosts has increased. Today's 100G optical modules have become a key factor in the cost of network hardware a...

• June 21. 2024

We all know that the traditional 100G optical module uses 4x25G optical channels parallel or wavelength division multiplexing for transmission, and the mainstream optical modules on the market are mainly 100G SR4/CWDM4/PSM4/LR4/ZR4 and so on. The 100G single-wave optical module we introduce to you today uses single-wavelength 100G PAM4 modulation technology, which can better reduce production cost...

• April 12. 2024

With the development and needs of mobile data, Internet, and big data, 400G OSFP is becoming more and more popular in the market. Speaking of 400G packaging form, most people blurt out QSFP-DD, and what we introduce to you today is another 400G packaging - OSFP. Let’s follow Xiao Yi to find out more!   I.Concept analysis of OSFP optical module OSFP (0ctal Small Form-factor Pluggable) is ...

• March 01. 2024

The 100G QSFP28 optical module has the characteristics of high density and low power consumption. It not only meets the current network needs, but also prepares for future network expansion. It is an ideal optical module solution for large data centers. Its standards are mainly defined by two major organizations, IEEE and MSA. Among them, IEEE defines the standards of SR4, LR4, ER4, and ZR4. ...

• June 15. 2023

The development of 100G Ethernet has brought a large market demand for 100G optical modules, among which 100G QSFP28 has become the most popular 100G optical module with it small size and low power consumption. 100G QSFP28 optical modules include SR4, eSE4, PSM4, LR4, CWDM4, ER4, ZR4, etc. In this article, ETU-LINK will focus on 100G QSFP28 LR4 optical modules. LINK) will focus on introducing...