• September 25. 2021

DWDM is a dense wavelength division technology. This technology multiplexes the tight spectral spacing of a single optical fiber carrier in a designated optical fiber in order to utilize the achievable transmission performance. This technical solution is used to increase the bandwidth of the existing laser technology on the optical fiber backbone network. The following ETU-LINK will introduce 10G ...

• September 23. 2021

Nowadays, the rapid development of data services has led to an increasing speed of IP network convergence, so network expansion is very important. In the construction of metropolitan area networks, there is a widespread problem of optical fiber shortage. Because metro expansion requires less channel numbers than trunk systems, and the distance is relatively short, optical amplification is not requ...

• September 18. 2021

As core components for photoelectric conversion in optical communication systems, data center interconnection, and long-haul transmission, optical modules rely on TOSA and ROSA to realize high-speed signal conversion. Now, ETU-LINK will introduce to you the components of the optical module—TOSA and ROSA. 1. What Is TOSA in Optical Modules? TOSA is the main component of the optical transmitter modu...

• September 16. 2021

Optical modules can be classified into single-fiber and dual-fiber according to the number of interfaces. Dual-fiber optical modules have two optical fiber interfaces, and single-fiber optical modules have only one optical fiber interface. In addition to the difference in optical fiber interfaces, the use of the two is also different. Therefore, ETU-LINK will introduce the precautions for the use ...

• September 11. 2021

The previous storage technology only uses the storage device as an auxiliary device of the server. The large-capacity data exchange between servers can only rely on traditional networks, and cannot adapt to the development of IT technology in terms of speed, security, cross-platform sharing, and unlimited expansion. Under such circumstances, SAN technology came into being. Fibre Channel SCSI techn...

• September 09. 2021

As an important part of the optical fiber communication system, the optical module plays the role of photoelectric conversion. But many people don’t know: What are the core components inside an optical module? How do TOSA, ROSA, CDR, LDD, TIA work together? This article explains each component’s function, structure, and working principle to help you fully understand optical module design. 1. What ...

• September 03. 2021

In the establishment of a 10G network, we will face a choice, that is, whether we choose optical fiber cabling or copper cabling. Optical fiber cabling systems are divided into multi-mode（MM) optical fiber cabling systems and single-mode(SM) optical fiber cabling systems, among which 10G MM optical fiber cabling systems need to use 10G SFP+ MM optical modules, 10G AOC active optical...

• August 26. 2021

Nowadays, video surveillance systems have become one of the indispensable infrastructures in cities, communities, factories, parks, campuses and other scenes. With the rapid popularization of 4K/8K high-definition cameras, AI smart cameras and panoramic monitoring equipment, the transmission bandwidth, signal stability and transmission distance of video surveillance networks have put forward highe...