Daniel, Naoki, Nutsinee

CLF now has a factor of 40 more power than before on the REFL diode. We reduced the common mode board gain by 26 dB in the common path and 6 dB in the fast path (now common mode gain is -8 dB). The UGF is 2 kHz with the phase margin of 22 deg.

We also remeasured the OPO TF. The UGF is 1.7 kHz with a phase margin of 66 deg. We increased the common mode board gain by 6 dB (now operting at -8dB). We couldn't push the gain much further because of the PZT resonance.