title: Controlling the 1 μm spontaneous emission in Er/Yb co-doped fiber amplifiers.
abstract: In this paper we present our experimental studies on controlling the amplified spontaneous emission (ASE) from Yb(3+) ions in Er/Yb co-doped fiber amplifiers. We propose a new method of controlling the Yb-ASE by stimulating a laser emission at 1064 nm in the amplifier, by providing a positive 1 μm signal feedback loop. The results are discussed and compared to a conventional amplifier setup without 1 μm ASE control and to an amplifier with auxiliary 1064 nm seeding. We have shown, that applying a 1064 nm signal loop in an Er/Yb amplifier can increase the output power at 1550 nm and provide stable operation without parasitic lasing at 1 μm.
authors: Laser & Fiber Electronics Group, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, Wroclaw, Poland. grzegorz.sobon@pwr.wroc.pl
authors: Grzegorz
authors: G
authors: Sobon
authors: Pawel
authors: P
authors: Kaczmarek
authors: Arkadiusz
authors: A
authors: Antonczak
authors: Jaroslaw
authors: J
authors: Sotor
authors: Krzysztof M
authors: KM
authors: Abramski
mesh_terms: D000669:Amplifiers, Electronic; D017076:Computer-Aided Design; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation*; D053844:Lasers, Solid-State; D008027:Light; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D013685:Telecommunications