Beam-quality studies of nanosecond singly resonant optical parametric oscillators

S.C. Lyons, G.-L. Oppo, W.J. Firth, J.R.M. Barr

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


A numerical model for a singly resonant, nondegenerate optical parametric oscillator, which includes diffraction and idler absorption, has been developed. This model requires just one equation for the resonated signal field to be numerically integrated, while the pump and idler fields are reconstructed from their analytic solutions and the dynamics of the signal field. Typical results from our simulations are, for example, output intensities and threshold fluencies, which can be compared with those obtained from experiments. Spatial beam quality of output beams produced by our model is evaluated via the M2 factor. We present results from the simulation which are consistent with experimental evidence, particularly in reference to the impact of idler absorption.
Original languageEnglish
Pages (from-to)541-549
Number of pages9
JournalIEEE J. Quantum Electron.
Issue number5
Publication statusPublished - 5 May 2000


  • beam quality
  • idler absorption
  • optical parametric oscillators
  • resonance
  • nonlinear optics
  • ultrafast optics
  • optical pumping
  • signal analysis
  • numerical models


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