Optical gain in Y2+:CaF2 crystal: potential medium for near-infrared tunable lasers

Valerii V. Ter-Mikirtychev

doi:10.1117/12.308661

27 May 1998 Optical gain in Y²⁺:CaF₂ crystal: potential medium for near-infrared tunable lasers

Valerii V. Ter-Mikirtychev

Proceedings Volume 3265, Solid State Lasers VII; (1998) https://doi.org/10.1117/12.308661
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Y²⁺ (4d¹ configuration) ion is proposed to be a new laser active optical center. As an example Y²⁺ in CaF₂ crystals demonstrates broad luminescence band with peak at 1146 nm and halfwidth of 2155 cm^-1 at room temperature when excited with 532 nm light. It was observed that Y²⁺ centers in CaF₂ are stable under excitation with 532 nm radiation with pumping power density of 233 MW/cm² from flash-lamp pumped Q-switched Nd³⁺:YAG laser. Optical gain has been measured in CaF₂:Y²⁺ amplifier at 1150 nm wavelength. It is concluded that Y²⁺ doped crystals seems to be promising materials for tunable solid-state lasers.

Citation Download Citation

Valerii V. Ter-Mikirtychev "Optical gain in Y²⁺:CaF₂ crystal: potential medium for near-infrared tunable lasers", Proc. SPIE 3265, Solid State Lasers VII, (27 May 1998); https://doi.org/10.1117/12.308661

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