An Infrared - Visible - Ultraviolet Tunable Optical Parametric Generation System

A high stability, high power density active-passive mode locked Nd
³⁺
:YAG Laser with second harmonic, third harmonic generator is necessarily used as a pumping source to pump a BBO parametric crystal. The influences of the pumping parameters, the group velocity mismatching and the dispersion spread of the wave envelopes were analyzed and calculated by computer. Based on this, the optimum curve of crystal length, phase-match and angle-tuned range respect to pumping energy were given. A BBO parametric crystal covering the range of 4032Å - 3μ and a BBO frequency mixing crystal covering the range of 2283Å - 3023Å were designed.