Abstract

We present a theoretical model of Yb$^{3 + }$-Er$^{3 + }$-Tm$^{3 + }$-co-doped system for white light generation. The energy level, electron transition process and numerical model are proposed to calculate fluorescence intensity of the system pumped by 980 nm laser. The numerical results reveal that our theoretical model is in good agreement with experimental results in literature. Optimal active ion concentrations are proposed to enable the system to emit red, blue and green lights which are mixed to generate white light in telluride matrix for display and lighting system.

© 2009 IEEE

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