[Stefan, Shimoda, Nakano]

The IMC was locked with double path AOM, which means we locked IMC and FSS same time!! After stabilization for those, bKAGRA-phase1-PSL would be ready except for PMC.

1.Configuration
a. actuators
FSS was locked with a laser PZT, a laser temperature tuning.
IMC was locked with a double path AOM.
b.UGFs
FSS: around 20kHz
IMC: around 20kHz
c.lock acquisition 
both: guardian (it's not optimized yet, and shimod-kun would report.)
d.servo settings
IMC: 
IN1GAIN->-15dB
common compensation filter->ON
Others-> OFF

I forgot to write down the FSS gains, so reported tomorrow, maybe after optimization. 

2.What we did
This weekend Shimoda-kun and I prepared for remote control of FSS and IMC. The guardian for FSS worked well in this morning and the new great MEDM screen helps us a lot. On Sunday we feel that the gain seemed too high, so I decreased the modulation RF signal to decrease the optical gain of IMC.(I also forgot the number of the modulation amplitude.) Then after some try with different gains, we got locked for some minutes. The OLG was measured.(But again, I forgot to bring the data back home, so I could not make any plot )

3. Concerns
a. IMC is not really stable.
From some signal we feel that  the IMC lock is not very stable so far. The MCL loop should be turned on and the servo for double path AOM should be optimized also. The MC Servo would be better to modify the filters to optimize the IMC control loop.
b. TTFSS ground problem
The EOM control signal from TTFSS had 120V DC signal with the FSS was locked, and it seems because of the ground problem. Tomorrow we would investigate and fix it.