Abstract

A Dy:KPb₂Cl₅ (KPC) laser oscillating at approximately 4.4 µm under diode laser pumping at 1.7 µm is demonstrated for the first time. A maximum output pulse energy of 1.1 mJ was achieved at 10 mJ of absorbed pump energy. Tunable laser oscillation in the 4.2–4.5 µm spectral range was recorded with this crystal. Limitations of Dy:KPC for laser oscillation due to its challenging thermo-optical properties are discussed. This crystal is a further addition to the range of low-phonon-energy materials doped with Dy ions that can be applied for laser oscillation in the mid-infrared spectral range under direct diode laser pumping.

© 2022 Optica Publishing Group

Optical properties of KPb₂Cl₅ and RbPb₂Cl₅ single crystals in the far ultraviolet spectral region

Igor N. Ogorodnikov, Natalia S. Bastrikova, Vladimir A. Pustovarov, and Lyudmila I. Isaenko
J. Opt. Soc. Am. B 31(8) 1935-1941 (2014)

Red-diode-clad-pumped Er³⁺/Dy³⁺ codoped ZrF₄ fiber: A promising mid-infrared laser platform

Hongyu Luo, Yongzhi Wang, Junsheng Chen, Biao Wang, Jianfeng Li, and Yong Liu
Opt. Lett. 47(20) 5313-5316 (2022)

Visible emission studies of melt-grown Dy-doped CsPbCl₃ and KPb₂Cl₅ crystals

Uwe Hommerich, Samuel Uba, A. Kabir, Sudhir B. Trivedi, Clayton Yang, and Ei Ei Brown
Opt. Mater. Express 10(8) 2011-2018 (2020)

Thulium-sensitized neodymium in KPb2Cl5 for mid-infrared laser development

A. G. Bluiett, N. J. Condon, S. O'Connor, S. R. Bowman, Michael Logie, and Joseph Ganem
J. Opt. Soc. Am. B 22(10) 2250-2256 (2005)

Optical spectroscopy of the RbPb₂Cl₅:Dy³⁺ laser crystal and oscillation at 5.5 μm at room temperature

Andrey G. Okhrimchuk, Leonid N. Butvina, Evgueni M. Dianov, Irina A. Shestakova, Ninel V. Lichkova, Vladimir N. Zagorodnev, and Alexander V. Shestakov
J. Opt. Soc. Am. B 24(10) 2690-2695 (2007)