Christina, Patrick

Yesterday, we aligned the DBB for both input beams and started checking on the measurement scripts. A tiny misalignment of the PMC input was also fixed. 

In the morning the position of the photo diode inside the Front End was changed due to ECR E1300621-v1. During that the laser was shut down because of the lid-overwrite. We restarted the laser, the power of the oscillator droped a little on the MEDM screen. However we couldn't find the reason. Now that photo diode is hit properly, the status of the noise eater can be watched on the laser MEDM screen.  

We found that the reference cavity was misaligned a little, thus, we optimized that. 

The DBB scripts were fixed and we run all the measurements for both laser systems. We also run the ISS measurement script. The performance of the lasers seems to be good. The out-of-loop noise of the ISS is a little to high, but the inloop performance indicates that the loop is working correctly. (At the moment the show references in the pdf are the measurements from Livingston. We will create our own references soon.)