Characterization of Er3+-doped Ti:LiNbO3 waveguides: losses, absorption spectra, and near field measurements

Niculae N. Puscas; Dan M. Grobnic; Ion M. Popescu; Mariacarla Guidi; Danilo Scarano; Guido Perrone; Ivo Montrosset

doi:10.1117/1.600676

1 May 1996 Characterization of Er3+-doped Ti:LiNbO3 waveguides: losses, absorption spectra, and near field measurements

Niculae N. Puscas, Dan M. Grobnic, Ion M. Popescu, Mariacarla Guidi, Danilo Scarano, Guido Perrone, Ivo Montrosset

Optical Engineering, Vol. 35, Issue 5, (May 1996). https://doi.org/10.1117/1.600676

We present the experimental results of the characterization of Er31-doped Ti:LiNbO3 waveguides using nondestructive methods. We report results concerning losses and near field and absorption measurements. Waveguide losses are measured in the 1550 nm wavelength region through an interferometric method based on two different techniques: thermal cavity tuning and wavelength sweeping. Homogeneous absorption and emission cross sections are calculated from the transmitted spectrum. The near field measurements are used to obtain the waveguide mode profile through a deconvolution algorithm to correct the probe effect. The resulting field profile enabled us to reconstruct the refractive index distribution.

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Niculae N. Puscas, Dan M. Grobnic, Ion M. Popescu, Mariacarla Guidi, Danilo Scarano, Guido Perrone, and Ivo Montrosset "Characterization of Er3+-doped Ti:LiNbO3 waveguides: losses, absorption spectra, and near field measurements," Optical Engineering 35(5), (1 May 1996). https://doi.org/10.1117/1.600676

Published: 1 May 1996

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