40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  PSL  Not logged in ELOG logo
Message ID: 150     Entry time: Sun Jun 6 23:01:58 2010
Author: tarac 
Type: Laser 
Category: Laser 
Subject: RefCav is almost locked 

When I try to lock the cavity, it's not very stable yet. The transmitted power fluctuates alot.

I try changing the gains, but still could not stabilize the lock . The transmitted beam power is about 60% during the stable lock (I got it nicely locked for 5- 10 mins.)

After RefCav is locked, I'll try to optimize the transmitted power, by adjusting the lenses' positions before moving on to work on ACav


ELOG V3.1.3-