Patent ID: 7180928
Filing Date: 2007-02-20
Classification: H01S

Abstract:
1. A laser comprising: a laser-resonator including an output coupling mirror, said resonator having an optical length of at least five centimeters; an OPS-structure having a surface-emitting gain-structure, said gain-structure including a plurality of active layers having separator layers therebetween said active layers having a composition selected to provide emission of electromagnetic radiation at a fundamental wavelength within a gain bandwidth of said gain-structure, when optical-pump light is incident on said gain-structure; said OPS structure being supported on a substrate located outside said laser-resonator with said gain-structure of said OPS-structure being inside said laser resonator; a heat-sink arrangement for cooling said OPS-structure; and an optical arrangement for delivering said pump-light to said gain-structure having a spot size of at least 200 microns at the gain structure, thereby causing fundamental laser-radiation having said fundamental-wavelength to oscillate in said laser-resonator; and an optically-nonlinear crystal located in said laser-resonator and arranged for frequency-doubling said fundamental laser-radiation thereby providing frequency-doubled radiation having a wavelength half of said fundamental-wavelength, with the frequency-doubled radiation exiting the cavity through the output coupling mirror is greater than about 100 mw.