Hybrid Fiber Amplifiers Consisting of Cascaded TDFA and EDFA for WDM Signals
Erbium-Doped Optical Fiber Amplifiers Pumped in the 660- and 820-nm Bands
Semiconductor Laser-Pumped High-Gain Pr^3^+-Doped Fiber Amplifiers
Fluoride optical fiber amplifiers (Invited Paper) [2996-23]
Reliability of fluoride fiber module for optical amplifier use