Concentration-induced nonuniform power in tunable erbium-doped fiber lasers

Xinyong Dong, Nam Quoc Ngo, Ping Shum, Bai-Ou Guan, Hwa-Yaw Tam, Xiaoyi Dong
2004 Optics Letters  
We report, for the first time to our knowledge, the presence of concentration-induced nonuniform power in tunable erbium-doped fiber lasers. A theoretical model is proposed with pair-induced quenching taken into account. We obtain good agreement between numerical and experimental results of a high-concentration erbium-doped fiber ring laser with a large tuning range of over 100 nm. These findings are useful for the design of lasers with doped fibers.
doi:10.1364/ol.29.000358 pmid:14971752 fatcat:4ezxcgxfzjbrbnipyyfb7mvkvq