Flared Oscillator Waveguide Diodes (FLOW-Diodes) Produce Record-High Single-Wavelength Fiber-Coupled Power

Broad area lasers with narrower rear-facet emitter-width compared to the front-facet have been fabricated to achieve suppression of higher-order-mode. Consequently, slow-axis divergence has been reduced by over two-times at current density >3kA/cm
²
enabling record fiber-coupled power of 315 W from 105μm and 0.15NA beam.