- Tytuł:
- Monte Carlo Least-Squares Fitting of the Beam Propagation Factor $M^{2}$
- Autorzy:
-
Alsous, M.
Almezel, M.
Alnezami, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1399271.pdf
- Data publikacji:
- 2013-10
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
42.60.Jf
42.55.Xi - Opis:
- A new method for $M^2$ least-squares fitting using Monte Carlo technique is introduced. The laser beam parameters and the propagation factor $M^2$ are calculated according to the ISO 11146. The initial values of the fitted parameters are analytically calculated and simple relations are given. These relations use three experimental points of the laser beam at different positions. The Monte Carlo fitting algorithm converged rapidly for all the tested beam. The $M^2$ value of a diode pumped Nd:YVO_4 laser was optimized. The best $M^2$ value was 1.08. This optimization was done by changing the pump spot size at the laser crystal. The best overlapping between the pump spot size and the $TEM_{00}$ mode dimension resulted in the best $M^2$ value.
- Źródło:
-
Acta Physica Polonica A; 2013, 124, 4; 673-676
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł