[Kenta, Masayuki]

The ALS DARM loop was closed as shown in the atttached figure. The spectra shows the error signal of the ALS DARM with loop closed (red) and without (blue).

Then, we implemented the watch dock to avoid large kick due to the ISC control.

Tomorrow, I will tune the servo filter to reduce the residual RMS, and see the performance of the ALS.