Results of upconversion lasing of Er3+ in YAlO3 crystal at cryogenic temperatures to green

Matt Holck; Richard Scheps

doi:10.1117/12.543849

15 December 2003 Results of upconversion lasing of Er³⁺ in YAlO₃ crystal at cryogenic temperatures to green

Matt Holck, Richard Scheps

Proceedings Volume 5260, Applications of Photonic Technology 6; (2003) https://doi.org/10.1117/12.543849
Event: Applications of Photonic Technology, 2003, Quebec City, Québec, Canada

Abstract

This paper reports data of green (549.8 nm) fluorescence and lasing of Erbium (Er³⁺) doped in Yttrium Orthoaluminate (YAlO₃) crystal pumped by near IR light at 8 and 40 degrees Kelvin. The fluorescence amplitude of Er³⁺ is measured at IR light pump wavelengths between 780 and 820 nm at 8 and 38 degrees Kelvin. Fluorescence peaks are related to the energy diagram of Er³⁺ and shown to originate from the ground energy state and a meta-stable energy state at 8 degrees Kelvin. Fluorescence peaks resulting from the first excited energy state are also present at 34 degrees Kelvin. The lasing of Er³⁺ pumped by these peak fluorescence IR wavelengths is measured as a function of pump power at 8 and 40 degrees Kelvin. 600 mW of green laser light are produced from 3 W oif IR pump pouwer indicating 20% lasing conversion efficiencies.

Citation Download Citation

Matt Holck and Richard Scheps "Results of upconversion lasing of Er³⁺ in YAlO₃ crystal at cryogenic temperatures to green", Proc. SPIE 5260, Applications of Photonic Technology 6, (15 December 2003); https://doi.org/10.1117/12.543849

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