Suspended silicon waveguides for long-wave infrared wavelengths

• Main Authors: Sánchez-Postigo, A., Nedeljkovic, M., Ortega-Moñux, A., Wangüemert-Pérez, J. G., Xu, Y., Halir, R., Qu, Z., Khokhar, A. Z., Osman, A., Cao, W., Littlejohns, Callum G., Cheben, P., Molina-Fernández, I., Mashanovich, G. Z., Penadés, J. Soler
• 其他作者: School of Electrical and Electronic Engineering
• 格式: Article
• 語言: English
• 出版: 2019
• 主題: Silicon Photonics; Mid-infrared; DRNTU::Engineering::Electrical and electronic engineering
• 在線閱讀: https://hdl.handle.net/10356/85326; http://hdl.handle.net/10220/48192
• 機構: Nanyang Technological University

In this Letter, we report suspended silicon waveguides operating at a wavelength of 7.67 μm with a propagation loss of 3.1±0.3 dB/cm. To our knowledge, this is the first demonstration of low-loss silicon waveguides at such a long wavelength, with loss comparable to other platforms that use more exo...