Georgia, Kevin, Camilla

Julia and I turned on the SQZ laser, PMC locked fine but the SHG PZT was railed high, Daniel needed to reduce H1:SQZ-SHG_SERVO_SLOWMON offset from 10V to 0V, it then locked fine too. I touched SHG polarizations to reduce SHG fiber rejected power.

Trended ZMs and FC1 top mass alignment. Adjusted ZM2P, ZM4P, ZM5P, FC1P and FC1Y as these were more than ~10urad from the last time in NLN. 

Started following last time we aligned Homodyne in 82153

Turned up SEED injected power from 0.7mW to 70mW.

We went out to SQZT7 and the beam was on the diodes adn there was fringing, we increased LO power to match SEED power using pico-waveplate. WE then adjusted the LO beam with SEED beam blocked to improve the subtraction: Checked we were centered on PDA/B using the steering mirrors downstream of the HD BS and then measured the HD DIFF spectrum. Adjusted BS, re centered on HD PDs and re-checked DIFF ndscope (spectrum of shot noise was noisy at low frequency, then repeated until we were close to zero on the DIFF channel.