Luminescent decay measurements and modeling of high-power erbium-ytterbium amplifier fibers reveal significant ytterbium to erbium secondary energy transfer plus non-participatory ytterbium ions not coupled to the erbium. Both phenomena will lower efficiencies of erbium-ytterbium amplifiers.
© 2004 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(160.0160) Materials : Materials
(160.5690) Materials : Rare-earth-doped materials
G. A. Sefler, W. D. Mack, G. C. Valley, and T. S. Rose, "Secondary energy transfer and non-participatory Yb3+ ions in high-power Er3+-Yb3+ amplifier fibers," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper CTuS1.