Modeling passive and active LiNbO3 optical waveguides

Niculae N. Puscas; Ion M. Popescu

doi:10.1117/12.312688

2 July 1998 Modeling passive and active LiNbO₃ optical waveguides

Niculae N. Puscas, Ion M. Popescu

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312688
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

Abstract

Based on several experimental measurements performed on Er³⁺-doped Ti:LiNbO₃ optical waveguides, this paper presents some theoretical and experimental results concerning the refractive-index profile and the absorption spectra corresponding to the transition ⁴I_15/2 yields ⁴I_13/2. The refractive-index profile of the above mentioned waveguide has been determined from near field intensity measurement using an optical fiber. A deconvolution algorithm for the original mode field of the waveguide reconstruction has been expanded and optimized for 2D applications. By using the reported model it is possible to evaluate some parameters which characterize the optical waveguides like: the refractive-index difference (Delta) n and the penetration depth d. The homogeneous absorption and emission cross sections have been calculated from the transmitted spectrum around 1531 nm of the Er³⁺-doped Ti:LiNbO₃ waveguide using the density matrix formalism.

Citation Download Citation

Niculae N. Puscas and Ion M. Popescu "Modeling passive and active LiNbO₃ optical waveguides", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312688

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