OPTICAL PARAMETRIC OSCILLATOR CAPABLE OF OSCILLATING WIDE WAVELENGTH LASER BEAM BY USING PARTIALLY REFLECTIVE MIRROR

摘要

PURPOSE: An optical parametric oscillator is provided to reduce a coating expense by oscillating a laser beam through the refractive index of a partially reflective mirror and the adjustment of an angle.;CONSTITUTION: A folding mirror(20) reflects a laser beam pumped from a laser light source(10) to the outside. A crystal(30) is used as the gain medium of the laser beam between folding mirrors. A plurality of prisms(40) and at least two total reflection mirror(50) form the route of the laser beam into the closed loop of the ring type. The prism refracts the laser beam. The total reflection mirror reflects the laser beam. A partially reflective mirror(60) oscillates a part of the reflected laser beam to the outside of the closed loop. The partially reflective mirror passes through the rest laser beam to the closed loop.;COPYRIGHT KIPO 2010