Suspended germanium waveguides with metamaterial lateral cladding for mid-infrared integrated photonics

A. Sánchez-Postigo, A. Ortega-Moñux,J. Soler Penadés,D. Pereira-Martín,A. Osman,M. Nedeljkovic,Z. Qu,Y. Wu,R. Halir,I. Molina-Fernández, P. Cheben,G. Z. Mashanovich,J. G. Wangüemert-Pérez

2021 IEEE 17th International Conference on Group IV Photonics (GFP)（2021）

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摘要

We demonstrate a suspended germanium waveguide platform with a propagation loss of 5.3 dB/cm at a wavelength of 7.7 µm, with potential applications in free-space optical communications and absorption sensing. Furthermore, our simulations show low-loss propagation up to ~15-µm wavelength.

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关键词

Free-space optical communication,Absorption,Conferences,Germanium,Propagation losses,Metamaterials,Sensors

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