DILAS, Mainz, Germany, now offers higher-power fiber-coupled, multi-bar modules operating at 1940 nm. These fiber-coupled, multi-bar modules have a compact footprint and deliver 30W through 600 µm core diameter fiber with a low numerical aperture of 0.22 and WPE of >10%.
These designs are based on industry standard conductively-cooled bars, which are optically stacked and polarization coupled. The product requires only industrial water for cooling.
Custom wavelengths are available upon request. These fiber-coupled, multi-bar modules are good for direct diode applications, such as welding of transparent plastics, medical or defense.