'Device6A_counts_map' is the experimental data for counts map of the device region. 'Device6A_Iv' is the experimental current versus voltage data at 3.5 K. 'Device6A_QE' is the experimental data for the DCR and SDE versus bias current. 'Device6A_reflection_map' is the experimental data for reflection map of the device region. 'Device6A_Tc' is the experimental critical temperature data of the sample. 'Device6A_Jitter' is the experimental data of the oscilloscope resposne histogram. 'Fibre coupled device' contains experimental data for maximum and minimum polarisation of fibre coupled device used for DCR and SDE versus bias current. 'Images' contains transmission electron macrograph images of the sample.