Two-octave dispersion flattening with five zero-dispersion wavelengths in the deep mid-IR

Yuhao Guo; Lijuan Xu; Zeinab Jafari; Anu M. Agarwal; Lionel C. Kimerling; Guifang Li; Jurgen Michel; Lin Zhang

doi:10.1117/12.2291331

21 February 2018 Two-octave dispersion flattening with five zero-dispersion wavelengths in the deep mid-IR

Yuhao Guo, Lijuan Xu, Zeinab Jafari, Anu M. Agarwal, Lionel C. Kimerling, Guifang Li, Jurgen Michel, Lin Zhang

Proceedings Volume 10541, Photonic and Phononic Properties of Engineered Nanostructures VIII; 105412E (2018) https://doi.org/10.1117/12.2291331
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

Group-velocity dispersion (GVD) engineering is vital to many nonlinear optical phenomena and has been widely used for nonlinear optics. Aiming at different applications, one need to control and engineer the sign, value, slope of dispersion and the number of zero-dispersion wavelengths (ZDWs). In this work, we demonstrate generation of 5 ZDWs in a new type of bilayer waveguides. Outer layer of this waveguide can be formed by depositing without etching. Material combinations are Ge₂₃Sb₇S₇₀ (n≈2.2) and Ge₂₈Sb₁₂Se₆₀ (n≈2.6). In this waveguide, an extremely wideband-low and flat dispersion can be obtained from 2.6 to 15.5 μm (2.6 octaves).

Citation Download Citation

Yuhao Guo, Lijuan Xu, Zeinab Jafari, Anu M. Agarwal, Lionel C. Kimerling, Guifang Li, Jurgen Michel, and Lin Zhang "Two-octave dispersion flattening with five zero-dispersion wavelengths in the deep mid-IR", Proc. SPIE 10541, Photonic and Phononic Properties of Engineered Nanostructures VIII, 105412E (21 February 2018); https://doi.org/10.1117/12.2291331

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