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Single-Mode Condition of Chalcogenide Glass Channel Waveguides for Integrated Optical Devices Operated across the Astronomical N-Band
Takashi YASUI Jun-ichiro SUGISAKA Koichi HIRAYAMA
IEICE TRANSACTIONS on Electronics
Publication Date: 2021/08/01
Online ISSN: 1745-1353
Type of Manuscript: BRIEF PAPER
optical waveguides, mid-infrared spectral range, chalcogenide glass, astrophotonics, finite-element method,
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In this study, we conduct guided mode analyses for chalcogenide glass channel waveguides using As2Se3 core and As2S3 lower cladding to determine their single-mode conditions across the astronomical N-band (8-12µm). The results reveal that a single-mode operation over the band can be achieved by choosing a suitable core-thickness.