Signals travel through fibers over large distances with attenuation. Then the optical amplifiers are needed in the CWDM (corse wavelength divsion multiplexing) and DWDM (dense wavelength divsion multiplexing). Optical amplifiers are device…

Since the invention of optical fibers in the early 1970s, the use of and demand for optical fiber today are quite numerous. With the explosion of information traffic due to the Internet, electronic commerce, computer networks, multimedia, …

People find it’s very difficult to discover the perfect solution for cabling infrastructure. The one is that it should depend on many complex circumstances. The other is because people don’t know very well about the properties of copper ca…

In 1980s, the first generation called wideband WDM (wavelength division multiplexing) using two widely spaced wavelengths in the 1310nm and 1550nm appeared. In early 1990s, the second generation narrowband WDM with two to eight channels wa…

Introduction Fiber optic patch cord is also known as fiber optic jumper or fiber optic patch cable. It’s made of two parts: optical connector and fiber optic cable. Inside of the fiber optic patch cord, there is a core with a high refracti…

As the development of computer science technology, 10 Gigabit Ethernet is widely used in our daily life. 10 Gigabit Ethernet means a group of computer networking technologies for transmitting Ethernet frames at a rate of 10 gigabytes per s…

WDM is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths of laser light. It can be divided into different wavelength patterns, conventional/coarse (CWDM) and dense…

SFP transceivers are commonly used and necessary in our daily life. And there are two kinds: single mode SFP and multi-mode SFP. However, maybe most people don’t know these two SFP transceivers are different. The following are the differen…