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Dimensions and refractive index estimates of deeply buried optical waveguides in Lithium Fluoride

Ismael Chiamenti et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo

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Author / responsible party
Ismael Chiamenti et al
Publisher
Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo
ISSN
2179-1074
ISSN
2179-1074
Language
English

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A recursive procedure is applied to the measured near-field profiles of buried optical waveguides recorded in a lithium fluoride (LiF) crystal by femtosecond laser pulses in order to estimate the core dimensions and the refractive index increase. Albeit the waveguides transversal section geometry is quite complex it is possible to obtain the horizontal and vertical widths and the average refractive index maximum increase assuming a simplified rectangular transversal section in the simulation. The procedure is validated by comparing the simulated results with the experimental near-field profiles and the maximum refractive index values of two commercial optical fibers. Typical dimensions of ~(8x10)µm² and refractive index changes of ~(2-10)x10-4 were obtained for the LiF waveguides at several wavelengths.

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APA 7

al, I. C. E. (s. f.). Dimensions and refractive index estimates of deeply buried optical waveguides in Lithium Fluoride. https://doi.org/10.1590/S2179-10742014000100004

MLA

al, Ismael Chiamenti et. "Dimensions and refractive index estimates of deeply buried optical waveguides in Lithium Fluoride.". https://doi.org/10.1590/S2179-10742014000100004.

Chicago

al, Ismael Chiamenti et. s. f. "Dimensions and refractive index estimates of deeply buried optical waveguides in Lithium Fluoride.". https://doi.org/10.1590/S2179-10742014000100004.

Harvard

al, I. C. E. s. f, Dimensions and refractive index estimates of deeply buried optical waveguides in Lithium Fluoride, Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo, available at: https://doi.org/10.1590/S2179-10742014000100004 [Accessed 7 Aug. 2026].

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Title
Dimensions and refractive index estimates of deeply buried optical waveguides in Lithium Fluoride
Author / contributors
Ismael Chiamenti et al
Publisher
Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo
ISSN
2179-1074
ISSN
2179-1074
Language
English

Subjects

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Refractive Index Increase; Core Dimension; Optical Waveguide; Lithium Fluoride; Femtosecond Laser
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