• October 17. 2025

In mid-to-high-speed optical communication scenarios, the 25G SFP28 Optical Module has become mainstream due to its characteristic of "balancing speed and cost". ETU-Link has been deeply engaged in this category and has created cost-effective products that are suitable for multiple scenarios, covering core needs such as data centers, enterprise parks, and 5G edge computing. I. Product Features: Co...

• October 14. 2025

In optical communication systems, optical modules are the core of optical signal transmission, and their performance is crucial to network stability and reliability. However, when long-distance optical modules are directly connected to short-distance optical fibers without attenuation, the optical components at the receiving end are easily damaged. This involves complex optical power management an...

• September 29. 2025

In fiber-optic communication systems, long-distance optical modules, due to their high transmit optical power, are highly susceptible to damage to receiving devices when directly connected to shorter optical fibers. This article analyzes the mechanisms of optical power overload, typical damage scenarios, and protective measures, providing technical references for engineering practice. I. Physical ...

• September 22. 2025

Every optical module of ETU-LINK Optical Communication carries the confidence of "factory-quality"! In the field of communication equipment, the quality of optical modules is directly related to the stability and security of the entire communication link. We always regard the testing link as the core of quality control, using strict standards and comprehensive guarantees to ensure that every custo...

• September 11. 2025

Did you know? In the world of optical transceivers, there's a subtle yet crucial role: the gold finger. Don't underestimate these glittering golden contacts at the end of an optical module; each one carries the weight of a "bridge for data transmission." When an optical module is inserted into a device, the gold finger engages directly with the connector, ensuring reliable transmission of electric...

• September 09. 2025

In the field of optical fiber communications, wavelength division multiplexing (WDM) technology is a key means of increasing optical fiber transmission capacity. As a key offshoot of WDM technology, CWDM (Coarse Wavelength Division Multiplexing) has been widely used in specific scenarios due to its low cost and ease of deployment. Below, ETU will provide a detailed analysis of CWDM, including its ...

• September 01. 2025

As core components of optical communication systems, the proper installation and use of optical modules directly impacts network stability. This article systematically identifies common anomalies during optical module installation. Combining hardware principles with practical experience, it provides step-by-step solutions and key considerations to help engineers efficiently troubleshoot. Ⅰ. Common...

• August 27. 2025

In the field of optical fiber communication, the attenuation operation of long-distance modules is one of the key links to ensure the stable operation of the communication system. This operation is not carried out arbitrarily, but is a necessary measure after comprehensive consideration of many factors such as signal transmission rules, equipment characteristics and actual application requirements...