Coupled two-core integrated waveguides modal analysis


Benedicto, David; Collados, M. Victoria; Martín, Juan C.; Jesú s Atencia & Vallés, Juan A.


“We present a modal analysis of coupled two-core integrated waveguides fabricated by femtosecond laser writing as a function of the core-to-core distance, illuminating position and input light wavelength. In order to do that we use the correlation filter method, implementing the computer generated holograms in a phase-only spatial light modulator. Due to the two-core waveguide symmetry, we prove it is not necessary to encode the complex amplitude in a phase-only device as long as the cores are not strongly coupled. A comparison between experimental and numerical modal weights is presented, showing that simple phase-only match filters allow the modal decomposition of two-core waveguides output beams”

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Publication: Journal of Physics: Conference Series
Issue/Year: Journal of Physics: Conference Series, Volume 2407; Number 1; Pages 012016; 2022
DOI: 10.1088/1742-6596/2407/1/012016