Law. Gloster et al., NONCOLLINEAR PHASE-MATCHING IN A TYPE-I BARIUM BERATE OPTICAL PARAMETRIC OSCILLATOR, Optics communications, 112(5-6), 1994, pp. 328-332
A full characterisation of noncollinear type I phase matching is prese
nted for BaB2O4 OPOs pumped at 532 nm. We demonstrate how increased no
ncollinearity leads to highly efficient low threshold oscillators. We
consider the effects of noncollinearity on signal linewidth and oscill
ator tuning, with good agreement being found with a theoretical model.