• June 18. 2026

With the rapid development of cloud computing, artificial intelligence, and 5G networks, the demand for bandwidth in data centers is growing exponentially. 400G optical modules, with their superior performance, are gradually becoming a core component of next-generation high-speed networks. Among numerous optical module brands, ETU-LINK stands out with its core competitiveness in high cost-effectiv...

• June 16. 2026

In data center and communication network construction, optical modules, as core components for photoelectric signal conversion, directly determine equipment compatibility and transmission performance through their interface types. Correctly understanding and distinguishing various commonly used interfaces is essential knowledge for network engineers and procurement personnel. I. By Package Interfa...

• June 09. 2026

Ⅰ.400G Upgrades for Data Centers: Choosing the Right Packaging Is Key Driven by technologies such as AI, cloud computing, and 5G, the global data volume is growing exponentially. The global market size for 400G optical transceivers reached $1.13 billion in 2025 and is projected to grow to $3.61 billion by 2035. Meanwhile, CignalAI predicts that total shipments of 400G and above high-speed data com...

• June 02. 2026

The explosive growth in demand for AI computing power is pushing data centers to a critical inflection point for upgrades. Looking ahead to 2026, the battle between 400G and 800G optical modules is no longer just a race for speed, but a generational choice concerning power consumption, cost, and future architecture. I. Technical Architecture: The Transition from 8×50G to 8×100G The 400G optical mo...

• May 28. 2026

Ⅰ. "Dual-channel" transmission and reception, without interference. Bidirectional over Single Fiber ( BiDi ) means that data transmission and reception can be completed simultaneously within a single optical fiber, unlike ordinary optical fibers which use two separate wires for transmission and reception. The core principle of this technology is the combination of wavelength multiplexing and trans...

• May 26. 2026

I. Core Principles of Wavelength Switching Relying on tunable optical devices and intelligent network management for dual control, seamless wavelength switching can be achieved without replacing hardware or interrupting services, ensuring transmission rate and link stability throughout the entire process. The core formula to remember first is c = f × λ. Since the speed of light c is constant, as t...

• May 21. 2026

As AI large-scale models accelerate their iteration, computing power clusters are moving from "thousands of cards" to "tens of thousands of cards" and "hundreds of thousands of cards." As the "blood vessels" connecting computing power, the internal hierarchical relationships of optical communication are becoming increasingly crucial. However, optical devices, optical modules, and optical engines a...

• May 15. 2026

In the field of optical communications, tunable DWDM optical modules are gradually becoming a key component for interconnecting backbone networks and data centers. What makes them so special? Traditional DWDM optical modules employ a "fixed wavelength" design, meaning each module can only transmit one specific ITU-T standard wavelength. This implies that a dense wavelength division multiplexing (D...

• May 13. 2026

In a corner of the data center server room, rows of optical modules are working silently. They look almost identical, but their internal structures are vastly different. Some are responsible for connections of a few meters between server racks, while others bear the heavy responsibility of spanning tens of kilometers across a city. This difference is the most fundamental dividing line in the field...

• May 09. 2026

In popularizing optical modules, SFP and QSFP are often confused. They are actually packaging interface standards from different eras, with the core differences being size, number of channels, and data rate, which determine their application scenarios and adaptation requirements. Simply put, the packaging of an optical module is like a mobile phone charging interface, iterating and upgrading with ...