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Modeling of highly-efficient grating-feedback and Fabry-Perot Er 3+-Yb3+ co-doped fiber lasers

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1 Author(s)
Di Pasquale, F. ; Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK

The continuous wave operations of highly-efficient Er3+/Yb3+ co-doped fiber lasers pumped at 980 nm are numerically analyzed. The model, based on propagation-rate equations, includes uniform upconversion from the 4I13/2 and 4I11/2 erbium levels and a pair-induced energy transfer process from Yb3+ to Er3+; it allows the description of both single-mode and multimode laser operations. Numerical results show that slope efficiencies close to the quantum limit, with threshold pump powers of few mW, can be achieved in short single-frequency fiber lasers using grating Bragg reflectors. Moreover, we demonstrate the possibility of performing equispaced multiwavelength laser emissions in high-concentration Fabry-Perot fiber microlasers

Published in:

Quantum Electronics, IEEE Journal of  (Volume:32 ,  Issue: 2 )