After having assembled the dark box for the SNSPD, Boris has taken the SNSPD to JPL to wire bond the physical sensor to the newly assembled PCB and box. I worked with Jamie to learn how to solder the pins and SMA connectors to the PCB, and finalize the dark box by filling the pin holes with black epoxy. I will post updated images of the final outcome this week.

As for uncertainty measurements for the Yokogawa system (here-11226) I have begun writing automated scripts for running specific measurements outlined in the paper (attachment 2) which detail how to calculate and measure the uncertainty of the Yokogawa system. Thus far I have attained one of the primary plots for the calibration factor for the power meter based on wavelength (see attachment 1). 

Next I will need to check that the powermeter script auto-calibrates the power meter to the correct wavelength before each measurement and will repost more in-depth results. After, I will make a long accurate measuement of the callibration factor plot and save the data to be integrated (and updated when needed) in the script such that any measurment made on the system will take callibration factors from this dataset and integrate them into the overall uncertainty calculation (as seen in the paper attached). 

I will then be running a script to do the same process for changes in laser output power. Lastly, the uncertainties for the attenuators and optical switches will be calibrated accordingly with the previous measurements included respectively. The final script will allow a user to make a PCR curve and based on the set conditions (attenuation value, optical switches in use, and laser output power) will calculate the uncertainty of each measurement accordingly.