W49:2017
This is a weekly todo list:
-
Investigate electronics noise for locked and unlocked PLL control signal -
Add RF Amplifier before beatnote to mitigate SR560 noise -
Re angle south PD and add black glass beam dump -
Re angle transmission beatnote PD -
Dump and reangle spurious beams in output PLL board -
Work out if PLL board should be p-polarized -
Fix clipping of beam on south Refl PD steering mirror (its hitting RH corner) -
Reoptimize the RF EOM polarizations to reduced RFAM possibly causing 2kHz hump (see https://nodus.ligo.caltech.edu:8081/PSL_Lab/1311) -
Investigate if 2 kHz is the same that Evan claims from noise injected into BBEOM (https://nodus.ligo.caltech.edu:8081/PSL_Lab/1526) -
Switch out North 77.3 lens -
Update noise budget with latest spectrum -
Check p-polarization into REFL RFPDs -
Check polarization into and out of cavities -
Buzz PLL output board and map out levels in Hz/sqrtHz in spectrum -
Check vac can windows are clean and free of scatter -
Float table! -
Noise budget for PLL -
Gather files for new ISS boards make assembly for double beam. (awade) -
Order N2 cylinder
Edited by Andrew Wade