We recently predicted [J. Opt. Soc. Am. B 35, 558 (2018)JOBPDE0740-322410.1364/JOSAB.35.000558] that large radial gradients of the refractive index induced by the pump beam in the heated gain medium of diode-pumped alkali lasers (DPALs) could lead to improved DPAL beam quality. This effect depends on the composition of the buffer gas in the cell. We report here on verifying this counterintuitive finding by careful measurements of the beam quality factor M 2 in static Cs DPALs with different compositions of the buffer gases.
Improving the beam quality of {DPALs} by refractive index gradients induced by the pump beam in the heated gain medium: experimental verification of the theoretical prediction / Luzon, R., Kostyukovets, S., Auslender, I., Mayorkas, N., Yacoby, E., Barmashenko, B.D., Rosenwaks, S.. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - 38:2(2021). [10.1364/josab.415552]
Improving the beam quality of {DPALs} by refractive index gradients induced by the pump beam in the heated gain medium: experimental verification of the theoretical prediction
Ilya Auslender;
2021-01-01
Abstract
We recently predicted [J. Opt. Soc. Am. B 35, 558 (2018)JOBPDE0740-322410.1364/JOSAB.35.000558] that large radial gradients of the refractive index induced by the pump beam in the heated gain medium of diode-pumped alkali lasers (DPALs) could lead to improved DPAL beam quality. This effect depends on the composition of the buffer gas in the cell. We report here on verifying this counterintuitive finding by careful measurements of the beam quality factor M 2 in static Cs DPALs with different compositions of the buffer gases.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
