I removed the two beam splitters on the PSL table installed for the faraday isolation measurement, so that we can use more power to search for the POP beam.  After removing both there was no noticable change in alingment on irises on the PSL, so I did not adjust the alingment at all.  I also rotated the half wave plate which will soon be in the motorized stage, so that there is now 0.95W incident on the bottom periscope mirror.  These powers were measured with the PD300-3W power meter head with the filter on. 

This means there is 0.76mW transmitted through the bottom periscope mirror (measured with filter off) , and 59uW transmitted by IO AB BS1.  I powered up the PD that was placed after IO_AB_M12, which was saturated with this power so I moved it to the location of IO_AB_PD2 in the drawing, where there are 16uW incident on it now, resulting in -4.96V.  With the beam blocked this PD has a 60mV offset.  This is a PDA55. 

I also removed the lens, PD, beamsplitter and beam dumps that were used with the two beamsplitters for the farday measurement, I put all the components in the IO cabinet in the anteroom.  This unblocked the PATH from IO_MB_WG1, this path seems to be aligned onto  IO_AB_PD1 already.

I also unblocked the ALS path.