Abstract

Record-high 16W continuous wave (CW) room temperature front facet output optical power and 72% wallplug efficiency were attained in 100-μm-aperture 1.06-μm- emitting laser diodes with 3 mm cavity length. We suggested and experimentally confirmed the effective method of internal optical loss reduction by high order mode suppression in separate confinement quantum well laser heterostructure with asymmetric ultra thick waveguide. Application of InGaAs/GaAs/AlGaAs laser heterostructure design with 1.7 μm - thick asymmetric waveguide in laser diode manufacturing allowed us to attain super low value of internal optical loss α_i = 0.34 cm⁻¹ preserving high efficiency and fundamental transverse mode operation.

© 2005 Optical Society of America