Open AccessЧисленное моделирование токовой зависимости спектров излучения мощных импульсных лазеров, выполненных на основе двойных гетероструктур раздельного ограничения
Author(s) -
А.В. Рожков,
Н.А. Пихтин
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.11.46196.17256
Subject(s) - lasing threshold , heterojunction , wavelength , current (fluid) , laser , limit (mathematics) , spectral line , semiconductor laser theory , physics , optoelectronics , materials science , optics , quantum mechanics , mathematics , mathematical analysis , thermodynamics
A new physical model is proposed for describing the observed current dependence of the emission spectra of high-power pulse lasers based on double separate-confinement heterostructures. The model takes into account the presence of isotype n–n heterojunctions at the interface between the waveguide and the active region. A numerical simulation of the lasing processes was performed. The resulting analytical current dependence of the 2D concentration of holes in the quantum well made it possible to evaluate for the first time the current dependence of the short-wavelength limit of the lasing spectrum. A good agreement was reached between the calculated and experimental characteristics.