Open AccessИсследование динамики выходной оптической мощности полупроводниковых лазеров (1070 nm) с маломодовым латеральным волноводом мезаполосковой конструкции при сверхвысоких токах накачки
Author(s) -
И.С. Шашкин,
А.Ю. Лешко,
В.В. Шамахов,
Д.Н. Романович,
В.А. Капитонов,
К.В. Бахвалов,
С.О. Слипченко,
Н.А. Пихтин,
П.С. Копьев
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.07.50799.18644
Subject(s) - laser , amplitude , current (fluid) , optics , semiconductor laser theory , materials science , power (physics) , optoelectronics , radiation , semiconductor , physics , quantum mechanics , thermodynamics
At ultrahigh levels of pulsed current pumping, the characteristics of semiconductor lasers based on an asymmetric heterostructure with a broadened lateral waveguide of a mesa-stripe design are studied. A peak power of 5.1 W is demonstrated at a pump current amplitude of 10 A. Three types of spatial dynamics of laser radiation are determined: the first one is a slow (~ 200 ns) intensity profile variation along the lateral near field at initial level of pump currents; the second one is a presence of fast (~ 10 ns) processes of mode competition at moderate pump currents; the third one is a chaotic temporal behavior of the output power at maximum pump currents.