Low-loss silicon core fibre platform for mid-infrared nonlinear photonics

Haonan Ren; Li Shen; Antoine F. J. Runge; Thomas W. Hawkins; John Ballato; Ursula Gibson; Anna C. Peacock

doi:10.1038/s41377-019-0217-z

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Low-loss silicon core fibre platform for mid-infrared nonlinear photonics

Article

- Low-loss silicon core fibre platform for mid-infrared nonlinear photonics
- Low-loss silicon core fibre platform for mid-infrared nonlinear photonics
- LSA 2019年8卷第6期页码：1053-1062
- Affiliations：
  
  1.Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK
  2.Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, 430074 Wuhan, China
  3.Department of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA
  4.Department of Physics, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
  5.Department of Applied Physics, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
  6.Present address: The Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, Sydney, NSW 2006, Australia
- Author bio：
  
  Li Shen (Lishen@hust.edu.cn)
- Funds：
- DOI：10.1038/s41377-019-0217-z
  中图分类号：
- 纸质出版日期：2019，
  
  网络出版日期：2019-11-21，
  
  收稿日期：2019-03-20，
  
  修回日期：2019-10-22，
  
  录用日期：2019-11-01
- Accepted：
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Low-loss silicon core fibre platform for mid-infrared nonlinear photonics[J]. LSA, 2019,8(6):1053-1062.

Ren, H. N. et al. Low-loss silicon core fibre platform for mid-infrared nonlinear photonics. Light: Science & Applications, 8, 1053-1062 (2019).
Low-loss silicon core fibre platform for mid-infrared nonlinear photonics[J]. LSA, 2019,8(6):1053-1062. DOI： 10.1038/s41377-019-0217-z.

Ren, H. N. et al. Low-loss silicon core fibre platform for mid-infrared nonlinear photonics. Light: Science & Applications, 8, 1053-1062 (2019). DOI： 10.1038/s41377-019-0217-z.

摘要

Abstract

Broadband mid-infrared light sources are highly desired for wide-ranging applications that span free-space communications to spectroscopy. In recent years

silicon has attracted great interest as a platform for nonlinear optical wavelength conversion in this region

owing to its low losses (linear and nonlinear) and high stability. However

most research in this area has made use of small core waveguides fabricated from silicon-on-insulator platforms

which suffer from high absorption losses of the use of silica cladding

limiting their ability to generate light beyond 3 μm. Here

we design and demonstrate a compact silicon core

silica-clad waveguide platform that has low losses across the entire silicon transparency window. The waveguides are fabricated from a silicon core fibre that is tapered to engineer mode properties to ensure efficient nonlinear propagation in the core with minimal interaction of the mid-infrared light with the cladding. These waveguides exhibit many of the benefits of fibre platforms

such as a high coupling efficiency and power handling capability

allowing for the generation of mid-infrared supercontinuum spectra with high brightness and coherence spanning almost two octaves (1.6–5.3 μm).

关键词

Keywords

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