The optical amplifier is a photonic device used in optical fiber communication systems. It can amplify optical signals and increase the power of optical signals. Optical amplifier is an important subsystem product in the optical fiber communication system and plays a key role in the optical fiber communication system.
The principle of optical amplifiers is based on stimulated emission, which achieves amplification by converting the energy of pump light into the energy of signal light. When the optical signal enters the optical amplifier, it interacts with the pump light, causing the electrons in the optical signal to jump to a higher energy level and release photons during the transition. These released photons have the same wavelength and phase as the photons in the optical signal, causing the optical signal to be amplified.
The following are common types of optical amplifiers:
Optical amplifiers are widely used in optical fiber communication systems, including long-distance optical fiber communication systems, optical fiber access networks, optical fiber metropolitan area networks, etc.
The optical amplifier has the following characteristics: