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Proceedings Paper

Modeling of laser emission at 0.9 um in Nd:LiNbO3
Author(s): Jose M. M. M. de Almeida; Antonio M. P. P. Leite; Jaymin Amin
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Paper Abstract

Modeling of laser oscillation at 0.9 micrometers in Ti waveguides in LiNbO3 doped with Nd ions is presented. Laser emission at 0.9 micrometers in Ti waveguides in Nd:LiNbO3 crystals was recently demonstrated. However, lasing was reported as unstable and lasting only a few seconds, with parasitic lasing at the higher gain transition at 1.08 micrometers shown to be a problem. In this work the possibility of obtaining efficient and stable laser oscillation at 0.9 micrometers in Ti:LiNbO3 waveguides, fabricated in substrates doped with Nd ions by thermal diffusion of thin metallic stripes or planar thin films, was theoretically evaluated. It was concluded that emission at 0.9 micrometers , with complete suppression of the parasitic emission at 1.08 micrometers , should be possible by selective increase of the losses at 1.08 micrometers , through optimization of waveguide and laser cavity, spatia localizations of the Nd ions and the use of the dependence on polarization of the emission cross sections at 0.9 and 1.08 micrometers .

Paper Details

Date Published: 13 April 2000
PDF: 8 pages
Proc. SPIE 3942, Rare-Earth-Doped Materials and Devices IV, (13 April 2000); doi: 10.1117/12.382865
Show Author Affiliations
Jose M. M. M. de Almeida, Univ. do Porto and Univ. de Tras-os-Montes e Alto Douro (Portugal)
Antonio M. P. P. Leite, Univ. do Porto (Portugal)
Jaymin Amin, Corning Inc. (United States)

Published in SPIE Proceedings Vol. 3942:
Rare-Earth-Doped Materials and Devices IV
Shibin Jiang, Editor(s)

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