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17 May 2010 Modeling of the Er3+-doped Ti:LiNbO3 optical waveguide couplers
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This paper reports some modelling results concerning a novel Er3+:Ti:LiNbO3 optical waveguide directional coupler. Based on the mode coupling theory we evaluated the coupling coefficient between the straight and curved waveguides of the directional coupler. Also, using a quasi-two-level model in the small gain approximation and the unsaturated regime in this paper we report some original results concerning the evaluation of the spectral optical gain, spectral noise figure and spectral signal-to-noise ratio in the bent Er3+:Ti:LiNbO3 waveguide of the directional coupler pumped near 1484 nm performed for erfc, Gaussian and constant profile of the Er3_ ions in LiNbO3 crystal.
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N. N. Puscas, S. S. Ciobanu, C. Negutu, and M. Stafe "Modeling of the Er3+-doped Ti:LiNbO3 optical waveguide couplers", Proc. SPIE 7469, ROMOPTO 2009: Ninth Conference on Optics: Micro- to Nanophotonics II, 74690W (17 May 2010);

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