Published November 2000 | Version v1
Journal article

Effect of Q-switch gate time on the temporal and spatial behavior of an intracavity frequency-doubled diode-pumped Nd:YAG laser

  • 1. KAERI, Taejon (Korea, Republic of)
  • 2. Golden Light Co., Taejon (Korea, Republic of)

Description

The characteristic of intracavity frequency doubling from a diode side-pumped Nd:YAG laser with a KTP crystal was investigated, in which the diode power was directly transferred into a 3-fold symmetric diffusive cavity through narrow slits. In a V-folded resonator, 30 W of green output was obtained with an optical-to-optical efficiency of 16.5% at an acousto-optic Q-switching frequency of 13 kHz. It was demonstrated that the green power, the pulse width, and the beam quality factor were strongly dependent on the Q-switch gate time. The horizontal beam quality factor and the pulse width decreased steeply when the Q-switch gate time decreased below 1.2 μs. This was due to the temporal overlap of the pulse tails to the Q-switching loss

Additional details

Publishing Information

Journal Title
Journal of the Korean physical society
Journal Volume
37
Journal Issue
5
Series
14 refs, 7 figs
Journal Page Range
p. 739-743
ISSN
0374-4884