Measurements of loss and mirror reflectivity in semiconductor optical waveguides: A European interlaboratory comparison experiment

The results of round-robin measurements of waveguide loss and integrated mirror reflectivity in several European laboratories in the frame of the COST 240 project are presented. The Fabry-Perot cavity contrast method was used on semiconductor optical waveguides. The measured losses show a satisfactory agreement (within 0.5 dB) between all the laboratories, but also point out some aspects which must be taken into account to get meaningful data.