Di Pasquale, F; Federighi, M; Fernandez, FA; Davies, JB; (1995) Modeling of highly efficient single-frequency Er3+/Yb3+ co-doped fiber lasers. In: Proceedings of SPIE - The International Society for Optical Engineering. (pp. 236 - 244).
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A theoretical model based on propagation-rate equations has been developed for modeling the continuous wave operations of Er/Yb co-doped fiber lasers. It includes uniform upconversion mechanisms from the I and I erbium levels and describes the coupling between Er and Yb ions through a pair-induced energy transfer process. The nonlinear differential equations of the model are numerically solved by means of a Runge-Kutta based iterative procedure. Numerical results, based on realistic input fiber parameters, show that slope efficiencies close to the quantum limit with threshold pump powers of few mW, can be achieved in short Er/Yb co-doped fibers equipped with input dielectric mirrors and output grating Bragg reflectors. Furthermore, we show that single frequency cw operations can also be performed, with lower efficiency, in Er/Yb co-doped Fabry-Perot fiber microlasers.
|Title:||Modeling of highly efficient single-frequency Er3+/Yb3+ co-doped fiber lasers|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering|
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