Amplification Window

Some articles on amplification, amplification window:

Erbium-doped Waveguide Amplifier - Laser Amplifiers - Doped Fiber Amplifiers
... Amplification is achieved by stimulated emission of photons from dopant ions in the doped fiber ... with stimulated emission reducing the efficiency of light amplification ... The amplification window of an optical amplifier is the range of optical wavelengths for which the amplifier yields a usable gain ...