K. V. Vorontsov, S. G. Garanin, N. A. Egorov, N. G. Zakharov, R. A. Zorin, V. B. Kolomeets, V. I. Lazarenko, A. S. Nadezhin, G. N. Nomakonov, K. A. Tulyakov, Yu. N. Frolov, “Nonlinear frequency conversion of a Ho : YAG laser beam”, Kvantovaya Elektronika, 2022, Volume 52, Number 3,Pages <nobr>262

This article is cited in 1 paper

Modern nonlinear optics

Nonlinear frequency conversion of a Ho : YAG laser beam

K. V. Vorontsov^a, S. G. Garanin^a, N. A. Egorov^a, N. G. Zakharov^ab, R. A. Zorin^ab, V. B. Kolomeets^a, V. I. Lazarenko^ab, A. S. Nadezhin^a, G. N. Nomakonov^a, K. A. Tulyakov^ac, Yu. N. Frolov^a

^a Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics (RFNC — VNIIEF), Sarov, Nizhny Novgorod region
^b Lobachevsky State University of Nizhny Novgorod
^c Lomonosov Moscow State University

Abstract: We report the results of experiments on frequency conversion of a Ho : YAG laser beam (wavelength λ ~ 2.1 mm) into the near-, mid-, and far-IR regions, aimed at expanding the spectral composition of compact multispectral sources of coherent radiation. The experimentally found laser conversion efficiency into the second harmonic reaches 32% and 54% in the cw and repetitively pulsed regimes, respectively. The parametric conversion efficiency into the mid-IR range (λ = 3.5 – 5.0 mm) reaches 55%, while for the far-IR range (λ = 8 – 8.2 mm) it turns out to be 10.5%.

Keywords: Ho : YAG laser, nonlinear conversion, second-harmonic generator, optical parametric oscillator.

Received: 15.12.2021
Accepted: 15.12.2021