I adjusted the REFL HWP angle to optimize CAMR loop UGF after increasing the laser power.
Thanks to the increase of fiber laser output (klog35349), IMC output can be increased upto 14.8W, so I adjusted the REFL HWP angle with that condition.

Figure 1 shows the OLTF of CARM after HWP angle ajustment.
UGF is 57kHz and the phase marging is 34 degrees, which is almost same as before.
For achieving above condition, I changed REFL HWP angle from 155 to 157 as shown in fig2.