[Rana, Jenne, Suresh]
Yesterday, We replaced the existing beam steering mirror and the PZT it was mounted on with a Gooch and Housego mirror (20ppm transmission at < 30deg incidence @1064nm) and a Polaris-K1 Newport steel mount. (JD)
We realigned the G&H mirror to get the MC flashing.
We then had to reduce the gain in the servo circuit to accommodate the increased optical power going into MC.
MC locked to PSL once again.
the old mirror stuck on the PZT has been removed. The mirror had no markings and has been stored in the 'Unknown Optics' Box along the East Arm.
The PZT has been stored in the PZT cabinet along with its 2in mirror mount.