R&D (FilterCavity)
EleonoraCapocasa - 14:13, Tuesday 27 March 2018 (724)
Comment to Monitoring the cavity round trip losses (Click here to view original report: 694)

In order to increase the statistic yesterday we repeated the measurement of the round trip losses, with the lock unlock technique.

Since we did it in two different moments of the day  the alignement conditions were likely to be different.

  reflectivity losses
#1 0.87±0.02 50±13
#2 0.80±0.03 81±16

The reflectivity has been computed by taking the mean of the time series between a lock and an unlock period. The error is computed as the progagation of the standard deviation of these two set of data. 

We estimated that 7% of the input light does not couple into the cavity.

Images attached to this comment
724_20180327071209_rtl260318.png 724_20180327071223_rtl260318b.png