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

doi:10.1587/transele.2020ECS6023

This article has now been updated. Please use the final version.

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

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Keywords: optical waveguides, mid-infrared spectral range, chalcogenide glass, astrophotonics, finite-element method

JOURNAL RESTRICTED ACCESS Advance online publication

Article ID: 2020ECS6023

DOI https://doi.org/10.1587/transele.2020ECS6023

The final version of this article is now available: Vol. E104.C (2021), No. 8 pp. 386-389

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Abstract

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.

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