Folder Name: Measurement_Data_Files_SNSPD 1) Folder Name: Jitter_Data_Different_Wavelengths This contains the .txt files for the jitter measurements at different wavelengths used in the manuscript. 2) Folder Name: PCR_Files_ SNSPD This contains the .txt files for the Photon count rate and dark count rate measurements at different wavelengths used in the manuscript. 3) File Name: NbTiN_5nm_RT.xlsx This contains the data for the Resistance-Temperature graph. 4) File Name: Volatge_Signal_data.csv This contains the data for the voltage signal.