Influence of the refractive index gradient on the transmission coefficient in the 1.5-micron range in an electro-optical converter based on lithium niobate

doi:10.18721/JPM.161.117

St. Petersburg Polytechnic University Journal - Physics and Mathematics Peter the Great St. Petersburg Polytechnic University

Since 2008

ISSN 2304-9782

ISSN 2618-8686

ISSN 2405-7223

Year: 2023 Volume: 16 Issue: 1.1

Pages: 498

1025 102285

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UDK: 538.9, 535.3

DOI: 10.18721/JPM.161.117

Article type: Conference Report, Theses of Report

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Influence of the refractive index gradient on the transmission coefficient in the 1.5-micron range in an electro-optical converter based on lithium niobate

Condensed matter physics

Authors:

Shmargilov Sergey A. Galutskiy Valeriy V. Puzanovskiy Kirill V. Stroganova Elena V.

Abstract:

The paper presents the results of a study of the effect of the composition gradient and refractive index on the attenuation of an optical signal at a wavelength of 1.55 microns. The attenuation measurements were carried out by the breakage method and the comparison method, the attenuation by both methods was 0.9 dB/cm when waveguides were formed along the change in the lithium composition in the crystal plate of the composition Li_0.94...0.98Nb_1.06...1.02O_3.12...3.04.