Waveguide design for mid- and far-infrared p-Si/SiGe quantum cascade lasers
Z Ikonić; R W Kelsall; P Harrison; Z Ikonić; Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK; R W Kelsall; Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK; P Harrison; Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK
Журнал:
Semiconductor Science and Technology
Дата:
2004-01-01
Аннотация:
Design considerations are presented for waveguides to be used in p-Si/SiGe based quantum cascade lasers operating in the mid- and far-infrared wavelength ranges. Modal losses and confinement factors are calculated for both TM and TE modes in conventional double metal clad structures, metal–highly doped semiconductor layer structures and also in novel metal–metal silicide structures. Guidelines for choosing the confinement and contact layer parameters are given.
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