• July 08. 2025

In today's rapidly developing information age, data centers and network communications have an increasing demand for high-speed and stable data transmission. As a key component to meet this demand, 25G optical modules have been widely used in the market. Among them, SFP-25G-SR and SFP-25G-ESR in 25G multimode optical modules are two common types. Let's take a closer look at their differences. 1. 2...

• July 02. 2025

Despite the rapid development of 100G and 400G technologies, 40G QSFP+ optical modules are still the mainstream choice for small and medium-sized data center upgrades due to their high cost-effectiveness and mature ecosystem. Faced with the two major technical routes of QSFP-40G-SR-BD (short-distance bidirectional) and QSFP-40G-LR4-S ( medium- distance single-mode), how to accurately match the nee...

• 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...

• June 18. 2025

In an era where information travels at the speed of light, optical modules, as the "bridge" of network communications, undertake the important task of converting electrical signals and optical signals, allowing data to be transmitted rapidly in optical fibers. Behind the stable operation of optical modules, there is an "invisible guardian" - Clock Data Recovery (CDR) technology. Although it is not...

• June 10. 2025

In the field of optical communications, the compatibility of optical modules is one of the core considerations for users to choose third-party products. As a leading domestic optical module manufacturer, ETU-LINK has adapted its optical module products to mainstream global network equipment brands by virtue of strict quality control and extensive compatibility testing. The following analyzes the c...

• June 04. 2025

In the optical fiber network system, the correct matching of optical modules and patch cord is very important, which is not only related to the stability of network connection, but also affects the efficiency and quality of data transmission. As a professional optical module manufacturer, ETU-LINK will introduce you to the comprehensive knowledge of optical module matching patch cords. Analysis of...

• May 23. 2025

In the construction of high-speed networks, 10G optical modules are core components of data centers, enterprise networks, and telecommunication networks. However, facing the numerous models on the market , such as LRM, SR, LR, ER, ZR and other optical modules , how to choose the most suitable module becomes a key issue. In this article, ETU-LINK will deeply analyze the differences between differen...

• May 19. 2025

In the wave of digital transformation, the demand for high-speed, large-capacity optical transmission in data centers, 5G bearer networks, and metropolitan area networks continues to rise. For medium- and short-distance high-density networking scenarios, the 100G QSFP28 O-Band DWDM 10km optical module launched by ETU-LINK has become a "weapon" for building efficient optical communication networks ...

• May 15. 2025

With the explosion of 5G, cloud computing, and AI computing power, the demand for bandwidth in data centers and communication networks is growing exponentially. However, problems such as limited fiber resources, high wiring costs, and tight rack space have become "invisible bottlenecks" that restrict network upgrades. How to Break Through? ETU-LINK 100G QSFP28 BIDI optical module came into being. ...

• April 29. 2025

In the process of data center evolution to 400G/800G, Single Lambda 100G Transmission has become a key breakthrough point to reduce the complexity of optical networks. ETU-LINK 100G QSFP28 Dual-fiber LR1 optical module redefines the energy efficiency boundary of high-speed optical interconnection by deeply integrating PAM4 Modulation Technology with single lambda long-distance transmission.  ...

• April 17. 2025

Driven by 5G, cloud computing and digital transformation, optical modules, as core components of high-speed communications, are evolving towards higher performance and longer distances. With its leading technology, ETU-LINK has launched 25G SFP28 ZR 80KM dual-fiber optical module and 25G SFP28 BIDI ZR 80KM single-fiber optical module , which have become the preferred solutions for data centers, me...

• 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...