Power Stabilization: Some Data

Today i have mounted all components and i have alignmented the bench. I have put out the laser lab the photodiodes because this must be used in Pisa for noise measure on the bench WI.
Obviusly the photodiode (only them) must be ri-alignmented.
In the folliwing some data:

Laser works to the maximum power:

1) Waveplate (max)
PoutAOM = 10,75 W (order 0 + order 1 )
P(power meter) = 9,55 W
Porder1= 16 mW
Porder0 (1) = 271 mW
Porder0(2) = 254 mW
AOM = 0°

From these data i can calculate the Riflettivity of Beam Splitter: R(BS order 1) = 16 % , R (BS order0(1)) = 2,5 % , R(BS ordero(2)) = 2,5 % .

2) Waveplate (min)
Porder1 = /
Porder0 (1) = 23 mW
P(order0(2) = 20 mW
P(power meter) = 394 mW

Now AOM is at Efficienty around 7 %. In this case i have measured the following values:

P(power meter) = 9,64 W
P(order 1) = 118 mW