Inspec keywords: aluminium compounds; optical fabrication; optical couplers; optical waveguides; III-V semiconductors; rib waveguides; refractive index; gallium arsenide; optical loss measurement; optical fibre couplers; integrated optics; semiconductor growth

Other keywords: high-NA rib-loaded GaAs/AlGaAs waveguides; coupling loss measurement; low refractive index; GaAs/AlGaAs rib waveguides; GaAs-AlGaAs; improved fibre coupling; integrated optical mode expander; 1.3 mum; etched rib; regrowth-free mode; large spot-size mode; selected depth; laterally tapering; drive-down technique; drive-down; existing waveguide geometry; wet-etched device; buffer layer

Subjects: Optical waveguides and couplers; Optical fabrication, surface grinding; Integrated optics; Integrated optics; Fibre couplers and connectors; Optical waveguides; Fibre optics; Optical constants and parameters (condensed matter); Optical variables measurement