Dual-wavelength Nd:CaLnAlO4 lasers at 1.365 and 1.390 µm

Pavel Loiko; Josep Maria Serres; Xavier Mateos; Xiaodong Xu; Jun Xu; Uwe Griebner; Valentin Petrov; Magdalena Aguiló; Francesc Díaz; Arkady Major

doi:10.1117/12.2289169

15 February 2018 Dual-wavelength Nd:CaLnAlO₄ lasers at 1.365 and 1.390 μm

Pavel Loiko, Josep Maria Serres, Xavier Mateos, Xiaodong Xu, Jun Xu, Uwe Griebner, Valentin Petrov, Magdalena Aguiló, Francesc Díaz, Arkady Major

Author Affiliations +

Proceedings Volume 10511, Solid State Lasers XXVII: Technology and Devices; 105111V (2018) https://doi.org/10.1117/12.2289169
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

Tetragonal calcium rare-earth aluminates, CaLnAlO₄, are attractive laser host crystals. The emission of Nd³⁺ ions at 1.3- 1.4 μm due to the ⁴F_3/2 → ⁴I_13/2 transition is of interest for medicine, fiber optics, and light conversion. We report on compact Nd:CaLnAlO₄ lasers using a plane-plane cavity. With an a-cut 0.8 at.% Nd:CaYAlO₄ crystal diode-pumped at 802 nm, a maximum continuous-wave output power of 365 mW was achieved at 1.365 & 1.390 μm corresponding to the σ-polarization. The ⁴F_3/2 → ⁴I_13/2 laser performance of the Nd:CaLnAlO₄ crystals was compared to that from a monoclinic Nd:KGd(WO₄)₂. At the ⁴F_3/2→ ⁴I_11/2 transition (1.08 μm), a Nd:CaYAlO₄ micro-laser generated multi-watt output (>4 W) with a slope efficiency of 39%.

Citation Download Citation

Pavel Loiko, Josep Maria Serres, Xavier Mateos, Xiaodong Xu, Jun Xu, Uwe Griebner, Valentin Petrov, Magdalena Aguiló, Francesc Díaz, and Arkady Major "Dual-wavelength Nd:CaLnAlO₄ lasers at 1.365 and 1.390 μm", Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 105111V (15 February 2018); https://doi.org/10.1117/12.2289169

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