The ML1XX25 series is a high-power, high-efficient AlGaInP semiconductor laser that provides a stable, single transverse mode oscillation with emission wavelength of 658nm and standard pulse light output of 250mW. ML1XX25 has a real-index-waveguide that improves the slope efficiency (reduction of the operating current) and the astigmatic distance. Also, ML1XX25 has a window-mirror-facet that improves the maximum output power. That leads to highly reliable and high-power operation at 75 °C.