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Optical Engineering

Characterization of Er3+-doped Ti:LiNbO3 waveguides: losses, absorption spectra, and near field measurements
Author(s): Niculae N. Puscas; Dan M. Grobnic; Ion M. Popescu; Mariacarla Guidi; Danilo Scarano; Guido Perrone; Ivo Montrosset
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Paper Abstract

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.

Paper Details

Date Published: 1 May 1996
PDF: 8 pages
Opt. Eng. 35(5) doi: 10.1117/1.600676
Published in: Optical Engineering Volume 35, Issue 5
Show Author Affiliations
Niculae N. Puscas, Polytechnic Institute of Bucharest (Romania)
Dan M. Grobnic, Politehnica Unvi. of Bucharest (Romania)
Ion M. Popescu, Polytechnic Institute of Bucharest (Romania)
Mariacarla Guidi, Politecnico di Torino (Italy)
Danilo Scarano, Pirreli Cavi (Italy)
Guido Perrone, Politecnico di Torino (Italy)
Ivo Montrosset, Politecnico di Torino (Italy)


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