The modelling and calculation of some characteristic parameters of Er3+:LiNbO3 optical waveguides

N. N. Puscas; I. M. Popescu

doi:10.1117/12.675661

18 April 2006 The modelling and calculation of some characteristic parameters of Er³⁺:LiNbO₃ optical waveguides

N. N. Puscas, I. M. Popescu

Proceedings Volume 6180, Photonics, Devices, and Systems III; 61800M (2006) https://doi.org/10.1117/12.675661
Event: Photonics, Devices, and Systems III, 2005, Prague, Czech Republic

Abstract

Based on the transmission spectra of Er³⁺-doped LiNbO₃ optical waveguides in this paper we report some experimental and theoretical results concerning the evaluation of some spectroscopic parameters which characterize the above mentioned waveguides. The absorption experimental spectra were used to determine the homogeneous absorption and emission cross sections (utilising the density matrix formalism and the McCumber's theory and taking into account the Stark splitting of the levels), the oscillator strength of the absorption transition, the spontaneous emission probabilities, the radiative lifetime and the excitation energy in three regions of the optical spectrum: around 1550 nm, 980 nm and 550 nm, respectively. Also, we measured the rising and falling times and we calculated the homogeneous upconversion factor corresponding to the transition ⁴I_15/2->⁴F_7/2.

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N. N. Puscas and I. M. Popescu "The modelling and calculation of some characteristic parameters of Er³⁺:LiNbO₃ optical waveguides", Proc. SPIE 6180, Photonics, Devices, and Systems III, 61800M (18 April 2006); https://doi.org/10.1117/12.675661

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