Open AccessPrediction of life time of high-power IR laser diode by resolution of its spectrum to single-mode components
Author(s) -
N. V. Berezovskaya,
V. V. Bliznyuk,
A. V. Dolgov,
V. A. Parshin,
N S Savinov,
А. А. Селиванов,
O. I. Semenova,
Alexander Tarasov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2127/1/012046
Subject(s) - superposition principle , diode , laser , power (physics) , spectral line , laser diode , emission spectrum , semiconductor laser theory , optics , line (geometry) , mode (computer interface) , optoelectronics , materials science , physics , computer science , mathematics , geometry , quantum mechanics , astronomy , operating system
The paper proposes a method for predicting the service life of high-power laser diodes used in optoelectronic measuring systems which allow adjusting the thermophysical parameters of the diagnosed flow volume in a certain range of their values. The method based on the analysis of the current dependence of the shape of the line enveloping the laser radiation spectrum after 200 hours of their operation. It is shown that for such an analysis the emission spectrum must be considered as a superposition of the emission spectra of single-mode laser diodes.