• July 23. 2026

The optical communication industry boasts a comprehensive and professional technical terminology system, with numerous abbreviations and professional terms, posing a significant cognitive barrier for newcomers. Having accumulated extensive industry experience and understanding the inefficiency of rote memorization, this article systematically compiles frequently occurring core terms in optical com...

• July 21. 2026

Let’s Talk About the “Invisible Ears” and “Smart Brains” Hidden Within the Internet of Everything. Have you ever wondered how your phone can accurately recognize your voice when you say "Hey Siri" in a noisy environment? How does radar transmit signals to the vehicle's computer in milliseconds when it detects an obstacle in front of the vehicle to make a braking decision? Behind these "smart momen...

• July 16. 2026

With the explosive growth of cloud computing and AI big data models, and the iterative upgrade from 5G to 6G, network bandwidth demand has seen an explosive increase. From backbone networks to metropolitan area networks, from data center interconnect (DCI) to enterprise core networks, 400G has become the "mainstream threshold" for high-speed transmission. Among them, 400G QSFP-DD LR4, with its uni...

• July 14. 2026

As the core hub of optical communication systems, the rate iteration of optical modules determines the data transmission efficiency and upper limit, supporting the upgrading of industries such as digital economy, AI computing power, and 5G communication. From 1.25G to 800G, the iteration of optical modules is accompanied by innovations in architecture, principles, and performance. This article wil...

• July 09. 2026

I. Basic Definition of TEC TEC stands for thermoelectric cooler, a miniature semiconductor solid-state temperature control element. Lasers in optical modules are highly sensitive to temperature; temperature fluctuations can easily cause problems such as wavelength shift, power instability, and signal degradation. Therefore, mid-to-high-end high-speed optical modules commonly incorporate miniature ...

• July 07. 2026

With the rapid development of data centers, AI, and 5G transport networks, 400G optical modules have become a core necessity in the communications industry chain. Compared to the mature 100G optical modules, their large-scale deployment still faces many underlying technical and application challenges, directly restricting market penetration and affecting cost control and operational stability in d...

• July 06. 2026

In optical communication network design, one of the most frequently asked questions engineers are asked is: "How far can this optical fiber actually transmit?" It seems like a simple question, but behind it lies a rigorous set of calculation logic. Today, let's break down how the transmission distance of an optical module is calculated. Ⅰ.Two Major Obstacles: Loss and Dispersion The transmission d...

• July 01. 2026

In the vast system of optical communication networks, we often focus on core equipment such as switches, routers, and optical modules, but overlook a seemingly small yet crucial component—the fiber optic patch cord. Like an "invisible bridge" in the network world, it traverses various scenarios such as computer rooms, data centers, and communication base stations, silently undertaking the task of ...

• June 25. 2026

With the rapid development of AI computing power and the continuous surge in data center traffic, 400G networks are gradually reaching their performance bottlenecks. To adapt to the needs of high-density, low-latency computing network upgrades, ETU-LINK Optical Communication has launched a pre-launch campaign for new products, showcasing two self-developed 800G high-speed optical modules based on ...

• June 23. 2026

With the rapid expansion of AI computing clusters and large data centers, the optical communication industry is accelerating its iteration from 400G to 800G large-scale commercial use and 1.6T small-batch trial production. The core of upgrading high-speed optical modules lies not in simply increasing the speed, but in the technological innovation of core optoelectronic materials. In 800G/1.6T tran...

• 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...