0.4 W CW diffraction limited beam Al free 0.98 µmwavelength three core ARROW-type diode lasers

Abstract

Diffraction limited beam operation to 0.4 W CW output power has been achieved from 20 µm aperture, 0.98 µm emitting three core antiresonant reflecting optical waveguide (ARROW)-type InGaAs/InGaAsP/InGaP diode lasers. The central lobe energy content is 73% to 0.2 W and 60% at 0.4 W.