We report the successful operation of a visible optical parametric oscillator (OPO) that uses urea as the nonlinear medium and is pumped in the near field of an injection-seeded pulsed XeCl excimer laser operating at 308 nm The OPO can generate continuously tunable radiation from 537 to 720 nm with a single set of dichroic mirrors and conversion efficiencies as high as 37% have been achieved in a 15-mm-long crystal at 90° phase matching. The influence of crystal double refraction (and hence beam walk-off) on the conversion efficiency across the OPO tuning range is discussed, and some oscillator parameters, including spectral linewidth and temporal behavior are characterized.
© 1989 Optical Society of AmericaFull Article | PDF Article
More Like This
A. J. Henderson, M. Ebrahimzadeh, and M. H. Dunn
J. Opt. Soc. Am. B 7(8) 1402-1410 (1990)
Opt. Lett. 13(8) 643-645 (1988)
M. J. Rosker and C. L. Tang
J. Opt. Soc. Am. B 2(5) 691-696 (1985)