Progress of Edge-Emitting Diode Lasers Based on Coupled-Waveguide Concept

Micromachines. 2023. Vol. 14. No. 6. Article 1271.

Han L., Wang Z., Gordeev N., Mikhail V. Maximov, Tang X., Beckman A., Kornyshov G., Alexey E. Zhukov

Semiconductor lasers have developed rapidly with the steady growth of the global laser
market. The use of semiconductor laser diodes is currently considered to be the most advanced
option for achieving the optimal combination of efficiency, energy consumption, and cost parameters
of high-power solid-state and fiber lasers. In this work, an approach for optical mode engineering
in planar waveguides is investigated. The approach referred to as Coupled Large Optical Cavity
(CLOC) is based on the resonant optical coupling between waveguides and allows the selection of
high-order modes. The state-of-art of the CLOC operation is reviewed and discussed. We apply
the CLOC concept in our waveguide design strategy. The results in both numerical simulation and
experiment show that the CLOC approach can be considered a simple and cost-efficient solution for
improving diode laser performance.

Keywords: волновод, полупроводниковый лазер, optical waveguide, Diode laser

Publication based on the results of: Investigation of the characteristics of micro- and nanolasers based on A3B5 semiconductor heterostructures of various quantum dimensions (2023)