• November 11. 2025

Ⅰ. Accelerated Localization of Optical Modules: Triple Drivers of Policy, Technology, and Corporate Practice Driven by the explosive growth of AI computing power and the large-scale application of 5G, optical modules, as a core component of communication infrastructure, are entering a critical window of opportunity for domestic substitution. ETU-Link Technology Co., Ltd. more than a decade of...

• 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...

• 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.  ...

• 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...

• March 07. 2025

In the field of high-speed data transmission, 100G optical modules have become an important part of data centers and telecommunication networks with their high-speed transmission capabilities and excellent performance. This article will deeply explore the 100G BIDI (single-fiber bidirectional) 80KM optical module launched by ETU-LINK, and analyze it from aspects such as product overview, features ...

• February 13. 2025

100G Ethernet optical module originated from the urgent need for high-capacity data transmission. It can provide high-speed 100Gb/s transmission rate to meet the needs of Internet applications, cloud computing, big data and high-definition video. Among them, 100G QSFP28 ER4 optical modules are widely used in long-distance transmission scenarios. For 40KM application scenarios, 100G ER4 optical mod...