Gain and noise in rare earth doped optical fibers

Limitations on Gain in Rare-Earth Doped Fiber Amplifiers due to Amplified Spontaneous Emission

High refractive index without absorption in a rare-earth-ion-doped optical fiber

All Optical Switching In Rare-earth Doped Fibers

Controllable optical bistability and multistability in a rare-earth-ion-doped optical fiber

Giant optical gain in a rare-earth-ion-doped waveguide

Rare-Earth-Doped Gain Media