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Entry  Mon Feb 16 02:49:57 2015, Jenne, Update, LSC, ALS fool measured decoupling TF ALSfool_measuredActuatorTF_YarmOnly_15Feb2015.pngYARM_actTF_compareActuators.pdf
    Reply  Mon Feb 16 03:10:42 2015, Koji, Update, LSC, ALS fool measured decoupling TF 
       Reply  Mon Feb 16 15:08:26 2015, Jenne, Update, LSC, ALS fool measured decoupling TF 
Message ID: 11039     Entry time: Mon Feb 16 15:08:26 2015     In reply to: 11038
Author: Jenne 
Type: Update 
Category: LSC 
Subject: ALS fool measured decoupling TF 

Dang it, yes. You're right.  I should have caught that. 

Since Dcpl and Srefl are both zero during the measurement (since it was an ALS lock), this is actually

\frac{{\color{DarkRed} A_{\rm refl}} {\color{DarkGreen} P_{\rm als} S_{\rm als}}}{1 - {\color{DarkGreen} A_{\rm als} G_{\rm als} S_{\rm als} P_{\rm als}}}

So, I need to remove the effect of the ALS closed loop, to get the actual quantity I was looking for.

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