• March 11. 2026

In the optical communication industry, the resale of used optical modules is no secret. Data centers, large enterprises, and operators are all driving this market's activity in various scenarios. The reasons behind this are related to product lifecycle management, as well as cost control and resource optimization. The following analysis examines the inevitability of the resale of used optical modu...

• December 23. 2025

In critical communication scenarios such as data centers and 5G base stations, optical modules serve as the "core hub" for photoelectric signal conversion, and their "zero-failure" operation directly impacts the stability of the entire communication network. ETU-LINK, leveraging years of accumulated expertise and utilizing its cleanroom as a core base, has achieved a legendary "zero-failure" quali...

• 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...

• June 10. 2025

In the field of optical communications, the compatibility of optical modules is one of the core considerations for users to choose third-party products. As a leading domestic optical module manufacturer, ETU-LINK has adapted its optical module products to mainstream global network equipment brands by virtue of strict quality control and extensive compatibility testing. The following analyzes the c...

• July 03. 2024

With the latest market report from LightCounting, we are able to get a glimpse of the dynamics of the optical communications market in the second quarter of 2024 (Q2 2024). In keeping with recent market performance, the optical communications market was once again starkly "hot and cold" this quarter: as has been the trend over the past several quarters, the optical communications market was marked...

• December 01. 2023

Optical module is mainly used in the field of data communication. Its function is to realize the mutual conversion of photoelectric signals. Due to the rise of big data, blockchain, cloud computing, Internet of things, artificial intelligence and 5G, data traffic has increased rapidly.The optical interconnection of data center and mobile communication has become a research hotspot in the optical c...

• March 14. 2023

In this blog, ETU-LINK will explain the development direction of optical interconnection of data center in the future from three aspects: geographical location distribution, bandwidth demand and optical module of data center. The construction of data center needs to occupy a relatively large land area, and the current price of land remains high, especially in some more developed cities, so the int...

• January 11. 2023

Due to new applications such as 4K high-definition video, live broadcast and VR have promoted the rapid growth of global network traffic, and new applications such as cloud computing, laaS services and big data have higher requirements for data transmission in data centers, global data centers have been upgraded from the original 10G/40G to 25G/100G, which has triggered an increase in the demand f...