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Numerical Rate Equation Modeling of a {\sim {\hbox {2.1}}-}\mu{\hbox {m}}-{\rm Tm}^{3+}/{\rm Ho}^{3+} Co-Doped Tellurite Fiber Laser

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5 Author(s)
Evans, C.A. ; Inst. of Microwaves & Photonics, Univ. of Leeds, Leeds, UK ; Ikonic, Zoran ; Richards, Billy ; Harrison, Paul
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Judd-Ofelt analysis is performed on measurements of bulk samples of Tm3+- and Ho3+-doped tellurite glass from which the host-dependent Judd-Ofelt intensity parameters are extracted. These have then been used to calculate the radiative rates and branching ratios in this particular material system. A rate-equation approach is then used to model an experimentally realized ~2.1 μm Tm3+/Ho3+ codoped tellurite fiber laser and extract values of the energy transfer and upconversion rate parameters in TeO2-ZnO-Na2O (TZN) glass. Excellent agreement is found between simulated and experimental data, which indicates the validity of the approach.

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Lightwave Technology, Journal of  (Volume:27 ,  Issue: 19 )