Patent ID: 6198756
Filing Date: 2001-03-06
Classification: G02F,H01S

Abstract:
A laser system, comprising:first and second active laser-resonators, said first active laser-resonator delivering laser-radiation at a first wavelength, and said second-active laser-resonator arranged to generate and oscillate fundamental laser-radiation therein having a second wavelength, said second laser-resonator including an optically-nonlinear crystal of CLBO;said first and second laser-resonators and said optically-nonlinear crystal cooperatively arranged such that first-wavelength radiation delivered by said first laser-resonator enters said optically-nonlinear crystal without passing through any other component of said second laser-resonator at an angle to said second wavelength radiation and follows a common path with said second-wavelength radiation through said optically-nonlinear crystal, whereby said first-wavelength radiation is mixed in said optically-nonlinear crystal with said second-wavelength radiation oscillating in said second laser-resonator, thereby generating radiation having a third wavelength corresponding to the sum frequency of said first and second wavelengths; andwherein said third-wavelength radiation is delivered from said optically nonlinear crystal as output radiation of the laser system without passing through any other component of said second laser-resonator.