Seeder laser follow-up (PSL-LAS-0101-03)

Conclusion:

-> it seems the seeder is quite stable and can't beresponsible for any power drop at the neoVAN output

data taken from logbook since December the 17th:
171212    (17 December 2017)
# Calibration LB_M6 (Seeder)
17,1 W reflected from LB_M6 to neoVAN = 17,3 mW transmitted by LB_M6
--> T_LB_M6 = 1.01e-3 TBCompared with 1.084e-3 given by the LMA
(let's assume that the LMA calib is correct since, I don't remember having zeroed the calo)

171218
T_LB_M6 = 18,2 mW
--> P_neoVAN_In = 16,8 W

## Slave current change to check whether we can get 20 W at neoVAN_in
D1/D2 (A)    P_LB_M6 (mW)    ->     P_neoVAN_In (W) = P_Slave after LB_L5
29.4/30.3    18.2                16.8     
30.5/30.3    18.2                16.8
30.5/31.4    18.2                16.8
31.5/31.4    17.8                16.42
30.5/32.4    17.6                16.23


180612
# measure of the seed power : 16.6 W (~ 18h LT)