Sheila, Tony

On Friday we continued trying to get flashes in the filter cavity for 1064nm, 532nm, and IR light onto the SQZT7 diode which we are using to establish that we are going through the VIP without clipping.  

At the start of the day we saw IR flashes of at max 0.04 counts on SQZ-FC_TRANS_D_LF with the OPO locked with CLF (with 21mW on CLF trig PD) 1.7 counts on FC_TRANS_C_LF with 5mW into the green fiber, and 36e-6 counts on OPO IR PD.  We saw that the green was clearly misaligned in yaw in the filter cavity, and we were able to improve the IR flashes and IR on SQZT7 with some yaw moves, but that made the green flashes nearly disappear.  We pio'd MOTOR 3 (H:M2) -710 counts, which improved the green flashes to 6 counts.  

Then we could see that the IR flashes and on SQZT7 were easiesr to improve with pitch moves, and that we no longer loose the green by improving them, so we spent some time trying to walk ZM1/2/3 for slow improvements, to get IR flashes of 0.1 counts, 83e-6 on SQZT7, and green flashes of 5.  (22:30 UTC March 20th)

This was slow going, so we decided to go back to FCES with cameras to see if we could get some photos or see flashes.  We will continue from the FCES this afternoon.