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<p>High-frequency (HF) plasma ignition in commercial lamps (frequency 3 MHz, current 100 A) for 150–500 μs after its HF (2 MHz) excitation provides a selective decrease in the radiation intensity in the 400–700 nm band compared to lamp pumping by a capacitor discharge. It was found that the coefficient of the decrease in radiation intensity increased with shortening of the HF excitation duration. In addition, an increase in the intensity of the krypton atomic lines (587, 760, and 810 nm) was found in the emission spectrum of the DKRTV-3000 lamp. These lines matched the absorption bands of Nd<sup>3+</sup> ions in the spectrum of the Nd<sup>3+</sup>:YAG laser crystal. Therefore, HF ignition was considered as an alternative to diode pumping for increasing the laser efficiency.</p>

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High-Frequency Ignition of a YAG:Nd3+ Laser Lamp with a Multiple Decrease of Visible Radiation Intensity

  • 期刊论文

  • 发表日期：

    2025年5月30日

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  • A. M. Valshin,
  • V. A. Orlovich,
  • S. A. Belkov,
  • S. M. Pershin,
  • M. Ya. Grishin,
  • V. I. Puzyrevskii

摘要

High-frequency (HF) plasma ignition in commercial lamps (frequency 3 MHz, current 100 A) for 150–500 μs after its HF (2 MHz) excitation provides a selective decrease in the radiation intensity in the 400–700 nm band compared to lamp pumping by a capacitor discharge. It was found that the coefficient of the decrease in radiation intensity increased with shortening of the HF excitation duration. In addition, an increase in the intensity of the krypton atomic lines (587, 760, and 810 nm) was found in the emission spectrum of the DKRTV-3000 lamp. These lines matched the absorption bands of Nd3+ ions in the spectrum of the Nd3+:YAG laser crystal. Therefore, HF ignition was considered as an alternative to diode pumping for increasing the laser efficiency.