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

doi:10.1364/OE.17.018312

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

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	18312-18319
Number of pages	8
Journal	Optics Express
Volume	17
Issue number	20
DOIs	https://doi.org/10.1364/OE.17.018312
Publication status	Published - 2009 Sept 28

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AU - Alderighi, Daniele

AU - Toci, Guido

AU - Vannini, Matteo

AU - Nikl, Martin

AU - Sato, Hiroki

PY - 2009/9/28

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AB - 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.

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

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