Direct Comparison of Yb3+:CaF2 and heavily doped Yb3+:YLF as laser media at room temperature

Angela Pirri, Daniele Alderighi, Guido Toci, Matteo Vannini, Martin Nikl, Hiroki Sato

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


We report an extensive comparison of the laser performances of diode-pumped Yb3+:YLF (30% at.) and Yb3+:CaF2 (5% at.) crystals, lasing at room-temperature and operating in two different operation mode, i.e. Continuous Wave (CW) and quasi-CW. An in-depth investigation of the crystals behavior by changing the pump power, clearly shows the crystal absorption depends on the lasing conditions. Therefore, we report an unambiguous definition of the slope efficiency calculated taken into account the real measured crystal absorption under laser action. Finally, we present a study of problems related to thermally induced losses which are expected influencing the laser performance.

Original languageEnglish
Pages (from-to)18312-18319
Number of pages8
JournalOptics Express
Issue number20
Publication statusPublished - 2009 Sep 28
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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