High CW power narrow-spectral width (>1.5 /spl Aring/) 980 nm broad-stripe distributed feedback diode lasers

摘要

100 /spl mu/m-stripe, broad-waveguide InGaAs-InGaAsP-GaAs DFB diode lasers (/spl lambda/=976 nm) have been realised which exhibit narrow spectral widths (full width at half maximum) of 0.5 and 1.3 /spl Aring/ at CW powers of 0.5 and 1 W, respectively. 5/95% facet-coated devices have been realised which have an external differential quantum efficiency of 52% and a wallplug efficiency of 33% at 1 W.