High-Brightness Wavelength Beam Combined Semiconductor Laser Diode Arrays

We report the wavelength beam combining of an array of high-power high-brightness 970-nm slab-coupled optical waveguide lasers. A 50-W peak power under quasi-continuous-wave (CW) operation was measured in an output beam with a beam quality of M
_x,y

²
=1.2, and 30 W under CW operation was measured with a beam quality of M
_x,y

²
=2