Jeff, Stefan

We did the PR2 M3 pitch L2P decoupling today.

Plot 1:  transfer functions:
 - blue:   measured L2P TF
 - green:  measured P2P TF
 - red:    L2P/P2P (from measured data)
 - black:  fit (note that we paid more attention to the frequencies below 1Hz, because they matter almost 2 orders of magnitude more (see L2P)
 - Purple: fitted filter times measured P2P.


Plot 2: 3e5cts drive to H1:SUS-PR2_M3_LOCK_L_EXC, first at 0.75Hz, then at 0.95Hz. At both frequecies we get about 1 order of magnitude suppression.