Peak power:  220 uW

I measured the output from the fiber launcher at EX. I placed a Thorlabs S302C power sensor head about 4in from the end of the launcher, after the lens translation stage. The power range for this head starts at 100uW, so it should be okay. I left the iris on the launcher as we nominally run it (6mm as read from the iris). With the iris fully open, it was too large to fit in the sensor head that I had with me, so I will have to revisit that another maintenance day.