• October 30. 2021

DAC high-speed cable is a low-cost and short-distance connection solution for data center equipment. It consists of a cable and optical fiber transceiver devices at both ends of the cable. Because of the high cost performance, the interconnection application between short-distance network equipment is widely welcomed. At present, there are many specifications of DAC high-speed cables on the market...

• September 09. 2021

As an important part of the optical fiber communication system, the optical module plays the role of photoelectric conversion. In this article, ETU-LINK will introduce to you what are the core components of the optical module? 1. TOSA: Its main function is to convert electrical signals to optical signals, including lasers, MPD, TEC, isolator, Mux, coupling lenses and other devices, including ...

• April 14. 2021

With the mature development of 100G technology and the advent of 100G products, the deployment of large enterprise network and data center is evolving towards 100G. At present, 100G optical modules on the market include CFP, CFP2, CFP4, QSFP28 and CPAK. The sizes of 100G optical modules in different packages are different. Among them, the 100G optical module in QSFP28 package has the smallest...

• April 10. 2021

Two important development trends of optical modules are to increase the transmission rate and extend the transmission distance. However, as the transmission rate increases, the signal transmission distance will be limited by many factors, such as chromatic dispersion, nonlinear effects, and polarization mode dispersion. These factors will limit the increase in transmission rate and trans...

• March 06. 2021

With the rapid development of the Internet of Things, big data and cloud computing technologies, the amount of transmission required for information interaction has shown explosive growth. Among them, semiconductor lasers are the basic components supporting the development of optical communications, and their mechanisms are constantly being optimized to meet the needs of modern communications. Com...

• January 19. 2021

Nowadays, with the increasing demand of network throughput and bandwidth, the demand of 100G high-speed optical module is also growing. IEEE has developed two optical module standards for 100G network: 100G SR4 QSFP28 and 100G LR4 QSFP28. But in practical application, because the transmission distance of the above optical modules can not fully cover the transmission distance requirements of t...

• January 16. 2021

People's desire for high-speed optical network promotes the vigorous development of the entire optical communication industry, including the independent research and innovation of optoelectronic device technology and many other technologies. At this stage, most of the data centers have deployed 100G network. In 100G medium range optical network transmission, 100G QSFP28 PSM4 and 100G QSFP28 CWDM4 ...

• January 07. 2021

Both 100G QSFP28 SR4 optical module and 100G QSFP28 AOC active optical cable are widely used in short distance interconnection of 100G data center. Since both of them can realize short distance interconnection, what is the difference between them and what are their advantages and disadvantages?   Before understanding the differences between them, let's first know their common points. Fir...