Change in the Properties of AlGaN/InGaN/GaN Structures during the Operation of Electron-Beam-Pumped and Optically Pumped Pulse-Periodic Lasers Based on Them


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During the operation of lasers based on an AlGaN/InGaN/GaN structure with electron-beam- and optical pumping, a gradual decrease in the output power is observed. In the first minutes of the operation of optical pumping lasers, a certain increase (by 5–10%) in the output power with a successive gradual decrease can be observed. Upon sample cooling, the rate of output-power degradation decreases. A decrease in the output power during operation of the laser is accompanied by changes in the emission spectrum—the line maximum shifts to the short-wavelength region and additional maxima appear. The observed effects can be explained both by the passivation of the initial defects and the diffusion of atoms of the structure during laser operation. The changes in the emission spectra are apparently associated with competition between two different generation channels.

作者简介

M. Zverev

Moscow Technological University MIREA

编辑信件的主要联系方式.
Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 119454

N. Gamov

Moscow Technological University MIREA

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 119454

N. Gladyshev

Moscow Technological University MIREA

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 119454

E. Zhdanova

Moscow Technological University MIREA

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 119454

D. Loktionov

Moscow Technological University MIREA

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 119454

V. Studionov

Moscow Technological University MIREA

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 119454

V. Kureshov

Stelmakh Research Institute Polyus

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 117342

A. Mazalov

Stelmakh Research Institute Polyus

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 117342

D. Sabitov

Stelmakh Research Institute Polyus

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 117342

A. Padalitsa

Stelmakh Research Institute Polyus

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 117342

A. Marmalyuk

Stelmakh Research Institute Polyus

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 117342

V. Kozlovsky

Lebedev Physical Institute, Russian Academy of Sciences

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 119991

V. Mituhliaev

Research Center for Study of Surface and Vacuum Properties

Email: mzverev@mail.ru
俄罗斯联邦, Moscow, 119421

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