With K. TANAKA
After the last measurement (https://klog.icrr.u-tokyo.ac.jp/osl/?r=17355), the demodulation phase of WFSQPD was precisely optimized. Therefore, we measured the sensing matrix again. (https://klog.icrr.u-tokyo.ac.jp/osl/?r=17413)
Details of the measurement:
We measured the response at each QPD when six different actuators were activated.
QPD : REFL WFS1,2, MCE TRANS DCQPD1, 2, IMMT1 TRANS DCQPD1
Degree of freedom: {actuator: MCI, MCO, MCE, COMMON of MCI and MCO, DIFFERENTIAL, IP2} * {direction: pitch, yaw}.
We summarized these results in the form of a matrix, comparing them with the previous measurements.
In this case, we have taken the value at 0.5Hz.