Patent ID: 7242700

Claim:
A laser system, comprising: a laser resonator including a gain medium; a pump system arranged to deliver optical pump power to said gain medium and thereby cause said laser resonator to generate and deliver fundamental radiation having a first wavelength; a frequency converter including a temperature-tuned first optically nonlinear crystal, said frequency converter arranged to convert said fundamental laser radiation delivered by said laser resonator to a beam of frequency-converted radiation having a second wavelength, the position of said frequency-converted beam and the efficiency of conversion from said first wavelength to said second wavelength being dependent on the temperature of said temperature-tuned first optically nonlinear crystal, and the power in said frequency-converted beam being dependent on the pump power delivered to said gain medium by said pump system; a detector arranged to provide signals representative of the position and the power of said frequency-converted beam; and, a controller cooperative with said pump system and said frequency converter and arranged to receive said signals from said detector, and further arranged, responsive to said signals, to adjust the temperature of said first optically nonlinear crystal to maintain said frequency-converted beam position at a predetermined position, and to adjust the pump power delivered to said gain medium by said pump system to maintain said frequency-converted power at a predetermined level.