Wen, Daniel

We removed the option board (PZT notch) from the CLF CM chassis, S/N S1700344. This makes it possible to use the bias adjust of the slow output to control PZT2 of the OPO.

In detail: We installed a dummy option board that has its output grounded. Now, when the slow option is engaged it will effectively turn of the feedback path from the CLF inputs. Hence, one can use the bias adjust to set an offset voltage on PZT2 of the OPO. The bias range is ±10V.