This article is cited in 1 paper

Large-volume CuBr-laser with the possibility of continuous control for generation of energy

M. V. Trigub, V. O. Troitskii

Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Science, Tomsk

Abstract: Characteristics of semiconductor lasers based on asymmetric heterostructures with broadened lateral waveguide of mesa-stripe design have been studied at ultrahigh levels of pulsed current pumping. A peak power of 5.1 W was demonstrated at a drive current amplitude of 10 A. Three types of spatial dynamics of laser emission were determined: slow ($\sim$200 ns) rearrangement of the intensity along the lateral near field is characteristic of the initial level of drive currents, fast processes of mode competition ($\sim$10 ns) are characteristic of moderate drive currents, and rearrangements are not repeated from pulse to pulse, being of chaotic nature, at maximum drive currents.

Keywords: semiconductor lasers, single-mode lasers, mesa-stripe design, heterostructure.

Received: 05.11.2019
Revised: 05.11.2019
Accepted: 29.01.2020

DOI: 10.21883/PJTF.2020.08.49308.18095

 English version: Technical Physics Letters, 2020, 46:4, 393–396

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