• 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 19. 2026

In data centers, telecommunications networks, and 5G base stations, optical modules play a crucial role in photoelectric signal conversion. Failures in these modules often lead to link interruptions, service disruptions, and incalculable losses. Understanding common optical module failure types is fundamental to effective network operation and maintenance and optimal module selection. I. Four Comm...

• 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 ...

• May 07. 2026

Push open the door to the data center, and amidst the humming server racks, countless thin optical fibers are carrying massive amounts of data. At the source of these fibers, a component the size of a fingernail — an optical chip—determines the performance ceiling of the entire communication system. Today, we'll discuss the most crucial choice for optical modules: direct-modulated lasers (DML) ver...

• April 30. 2026

In today's rapidly evolving technological landscape, the convergence of drones and optical communication is becoming a key force driving industry transformation. The following will elaborate on the relationship between drones and optical communication, trends in optical module products, and future prospects. I. The Relationship Between Drones and Optical Communications: Optical Modules as Core Com...

• April 28. 2026

Comparative Analysis of PAM4 and NRZ Modulation Technologies PAM4 and NRZ are two mainstream digital signal modulation technologies in optical communication and high-speed data transmission. Their fundamental differences lie in the number of signal levels, transmission efficiency, and anti-interference capabilities. The following analysis will examine them from three dimensions: principles, c...