Fiber Optical Amplifier CATV GPON EDFA

EDFA or Erbium-doped Fiber Amplifier, uses the Erbium-doped fiber as optical amplification medium to directly enhance the signals. The amplifying medium is a glass optical fiber doped with erbium ions. The erbium-doped fiber gain medium amplifies light at wavelengths that are in the neighborhood of 1550nm the optical wavelengths that suffer minimum attenuation in optical fibers. EDFA works best in the range of 1530 to 1565nm, and it possesses low noise and can amplify many wavelengths simultaneously, making it the fiber amplifier of choice for most applications in optical communications.