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

Roei Luzon, Svyatoslav Kostyukovets, Ilya Auslender, Nitzan Mayorkas, Eyal Yacoby, Boris D. Barmashenko, Salman Rosenwaks

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We recently predicted [J.Opt. Soc. Am. B 35, 558 (2018)] that large radial gradients of the refractive index induced by thepumpbeam in the heated gain medium of diode-pumped alkali lasers (DPALs) could lead to improvedDPAL 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 M2 in static Cs DPALs with different compositions of the buffer gases.

Original languageEnglish
Pages (from-to)550-552
Number of pages3
JournalJournal of the Optical Society of America B: Optical Physics
Volume38
Issue number2
DOIs
StatePublished - 1 Oct 2021

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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