Patent ID: 7082150
Filing Date: 2006-07-25
Classification: H01S

Abstract:
1. A semiconductor laser device, comprising at least two sets of light emitting units and a polarizing optical element, wherein directions of polarization of laser beams emitted from said two sets of light emitting units are deviated from each other and said polarizing optical element superimposes the laser beams emitted from said two sets of light emitting units by reflecting one of the laser beams and by allowing the other of the laser beams to pass, wherein each of said light emitting units comprises a semiconductor laser array for excitation having a plurality of semiconductor laser elements, and an optical resonator having a solid-state laser medium with a reflection mirror formed on one end surface and an output mirror provided in parallel to said reflection mirror, wherein said solid state laser medium and said output mirror are joined by using a spacer so as to form a gap, and laser beams emitted from the plurality of said semiconductor laser elements enter said optical resonator independently from each other, and the laser beams are respectively amplified and are projected by said optical resonator.