Aritomi, Yuhang

We had issue of pitch and yaw sensing coupling, as reported in elog2141, especially from end mirror motion. We see from that entry that the driving of end mirror pitch/yaw goes into yaw/pitch sensing mainly in WFS1.

Therefore we tried a new design of AA telescope as shown in attached figures. The first figure is contain the phase information. The second figure shows how components are organized on top of bench.