High-gain (G > 20 dB) multimode erbium-doped amplifiers pumped at 980-nm using a Ti:Sapphire laser and at 1485-nm using a laser+amplifier photonic integrated circuit have been demonstrated. Low amplifier noise power is achieved by coupling pump light into a limited number of fiber modes.
Amplification in "few-mode" Er3+-doped fiber amplifiers
Fiber Laser Sources and Amplifiers IV ; 1992 ; Boston,MA,United States
Proc. SPIE ; 1789
1993-03-23
Conference paper
Electronic Resource
English
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