A new scheme for phase matching in quantum cascade lasers for terahertz-range frequency generation
Savchenko G. M.1, Sokolovskii G. S.1
1Ioffe Institute, St. Petersburg, Russia
Email: gms@mail.ioffe.ru

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We propose a design of a dual-frequency quantum cascade laser that ensures phase matching during generation of difference-frequency in the terahertz range. The novelty of the proposed design lies in a new approach to achieving phase matching wherein the difference-harmonic waveguide is the substrate of the quantum cascade laser. Keywords: terahertz radiation, difference-frequency generation, quantum-cascade lasers, phase matching.
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