Alexa, Peter K., Paul, Mackenize

We have begun the set up for the RFAM measurement in the PSL enclosure.

First we aligned the OSA and attached it to an oscilliscope. We could see the carrier and 45MHz sidebands, but only sort of see one of the 9 MHz sidebands. After we set this up we remembered an email from Volker indicating we must add an amplifier to the EOM in order to better see the sidebands from the OSA. We will do this when we return to the PSL enclosure. At the moment we have a beam dumb in front of the OSA until we continue.

Second we placed an 1811 PD on the table. The PSL layout indiciates that IO-AB_PD1 should be a 1811; however this was not installed on the table. Instead we had found IO-AB_PD3 in the postion of PD1 and the wedge IO_AB_W1 was actually a HR mirror. We moved PD3 to its specified location and put the proper wedge (2025-45P) on the table. We placed the 1811 as specified and connected it to a spectrum analyzer. We could only see the 9 MHz and not the 45 MHz sideband ?? Also PD3 is conntected to H1:PSL-EOM_A_DC_POWER, which reads 2.22 (not sure what this is calibrated in); we noticed we are actually saturating this PD even though we are at this lowest gain setting of the PD.