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Abstract <p>The energy and spectral characteristics of radiation generated using the first type of phase matching in the wavelength range 3.3–6.57 μm by a ZnGeP<sub>2</sub> single-crystal optical parametric oscillator pumped by a Ho:YAG laser were studied. The experimentally attained maximal average OPO radiation power was ∼4.63 W at the signal wave at a pulse repetition rate of 10 kHz with a generation efficiency of 44.67% and ∼680 mW at the idler wave at a pulse repetition rate of 10 kHz with an efficiency of ∼6.57%. The developed OPO is promising for medical applications in the field of non-invasive surgery for dual-wave action on human organic tissue for the purpose of tissue ablation.</p>

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Energy Characteristics of Radiation in the Wavelength Range 3.3–6.57 μm of an Optical Parametric Oscillator Based on a ZnGeP2 Single Crystal when Pumped by Ho:YAG Laser Radiation

  • 期刊论文

  • 发表日期：

    2025年12月25日

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  • N. N. Yudin,
  • D. V. Vlasov,
  • E. S. Slyunko,
  • M. M. Zinovev,
  • V. S. Kuznetsov,
  • S. N. Podzyvalov,
  • A. Yu. Kalsin

摘要

Abstract

The energy and spectral characteristics of radiation generated using the first type of phase matching in the wavelength range 3.3–6.57 μm by a ZnGeP2 single-crystal optical parametric oscillator pumped by a Ho:YAG laser were studied. The experimentally attained maximal average OPO radiation power was ∼4.63 W at the signal wave at a pulse repetition rate of 10 kHz with a generation efficiency of 44.67% and ∼680 mW at the idler wave at a pulse repetition rate of 10 kHz with an efficiency of ∼6.57%. The developed OPO is promising for medical applications in the field of non-invasive surgery for dual-wave action on human organic tissue for the purpose of tissue ablation.