Here are a bunch of sensing signals. The configuration is always DRMI. Except for the optic noted in the title and the x-axis of any individual plot, other optics are held in their nominal position. DRMI condition is sidebands resonant in PRCL, 55MHz sideband resonant in SRCL. Each plot has an error signal, as well as the 2f signals at POP and AS.
The phases of POP22 and POP110 have been adjusted so that the I signal is maximized when everything is at the nominal positions (sideband resonant for PRMI). The phase of AS110 has been adjusted so that the I signal is maximized when the DRMI is in the nominal position (f2 resonant in SRC). The phases of the 1f1, 1f2, 2f1 and 2f2 REFL signals were all adjusted to have max PRCL signal in the I phase. AS55 was adjusted to have max SRCL signal in the Q phase.