40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
 List  |  Find  |  Login  |  Help 
Entry  Sat Mar 7 22:01:12 2015, Jenne, Configuration, LSC, CARM and DARM on RF signals!!!!!!!!!!!!!!!!!!!! ARM_POWERS_100.png
    Reply  Sun Mar 8 00:05:37 2015, Koji, Configuration, LSC, CARM and DARM on RF signals!!!!!!!!!!!!!!!!!!!! 
       Reply  Sun Mar 8 01:27:01 2015, Jenne, Configuration, LSC, CARM and DARM on RF signals!!!!!!!!!!!!!!!!!!!! RFlock3min.png
Message ID: 11116     Entry time: Sat Mar 7 22:01:12 2015     Reply to this: 11117
Author: Jenne 
Type: Configuration 
Category: LSC 
Subject: CARM and DARM on RF signals!!!!!!!!!!!!!!!!!!!! 

[Jenne, with Matt and Fujimi as witnesses]

It might be about time to throw that champagne in the fridge.  Nice. Not quite close enough to talk about popping it open, but we'll want it chilled just in case... yeslaugh

I still haven't logged yesterday's work, and I'm still working now, so no details, but I just handed both CARM and DARM over to non-normalized RF signals, and had the arms stable at powers of about 105.  I was workinig on the ETM alignment, and the power was increasing, so I think that's where the extra power will come from. I was lowering the DARM gain as I improved the alignment, because the optical gain was increasing so much.  I probably just didn't do that fast enough for the last aligning, which is why I lost lock.

Anyhow, here's a plot, because I'm excited:

Attachment 1: ARM_POWERS_100.png  510 kB  | Hide | Hide all
ARM_POWERS_100.png
ELOG V3.1.3-