In fiber optic networks, optical active devices are key components. It can convert electrical signals and optical signals to each other, the optical transmission system of the heart. Optical active devices are divided into the following three categories. A. Light Source The device that converts electrical signal into optical signal is called light source. The […]
Optical Amplifier
Why we need a Fiber Optic Amplifier
The fiber optic amplifier plays a significant and key role within the enhancing the capacity for a communication system to deliver information. The light signals can be transmitted by the use of optical transmitters, optical receivers and optical fiber. The optical amplifier is a device amplifying an optical signal directly, without the need to first […]
Erbium-doped Fiber Amplifier
Optical amplifier is an optical communication system device. It amplifies an optical signal directly, without converting an optical signal into an electrical signal. Erbium-doped fiber amplifier (EDFA) is the first successful optical amplifier invented by the UK Southampton University and JP Tohoku University. It is one of the greatest invention in optical communication. Erbium-doped optical […]