Abstract

First results on a diode-pumped multikilowatt-class ${\mathrm{Er}}^{3+}\text{:}\mathrm{YAG}$ solid-state heat-capacity laser (SSHCL) are reported. The laser achieves an output power of $4650\mathrm{W}$ and output energies in excess of $440\mathrm{J}$. A moderate crystal temperature increase due to crystal heating of $56.7\mathrm{K}/\mathrm{s}$ is measured at $11.3\mathrm{kW}$ of pump power and the temperature-related power drop is determined to $8.8\mathrm{W}/\mathrm{K}$. The presented work is believed to be the first multi-kilowatt-class resonantly diode-pumped ${\mathrm{Er}}^{3+}\text{:}\mathrm{YAG}$ laser.

© 2011 Optical Society of America

Multi-kW-class 1.64 μm Er³⁺:YAG lasers based on heat-capacity operation [Invited]

Marc Eichhorn
Opt. Mater. Express 1(3) 321-331 (2011)

High-power polycrystalline Er:YAG ceramic laser at 1617 nm

C. Zhang, D. Y. Shen, Y. Wang, L. J. Qian, J. Zhang, X. P. Qin, D. Y. Tang, X. F. Yang, and T. Zhao
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