A new scheme for phase matching in quantum cascade lasers for terahertz-range frequency generation

G. M. Savchenko, G. S. Sokolovskii

Ioffe Institute, St. Petersburg, Russia

Abstract: 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.

Received: 25.12.2023
Revised: 22.01.2024
Accepted: 01.02.2024

DOI: 10.61011/PJTF.2024.10.57703.19853

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