Pedagogically fast model to evaluate and optimize passively Q-switched Nd-doped solid-state lasers.
Opt Lett
; 46(7): 1588-1591, 2021 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-33793494
ABSTRACT
The coupled rate equations with the spatial overlap effect for four-level passively Q-switched lasers are fully considered. A transcendental equation is derived for the residual fraction of the inversion density after the finish of the Q-switched pulse. Comprehensive calculations for the transcendental equation were executed to attain an analytical function for precisely fitting the residual fraction of the inversion density. With the fitting function, a pedagogical model with the correction for high output coupling is developed to straightforwardly analyze the output pulse energy and peak power. Detailed experiments are carried out to validate the model.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2021
Tipo de documento:
Article