As almost reported here the diode current was increased by about 25%. But, remember that adjusting the didoe current also changes the laser frequency! Today we had to adjust the PZT temperature by 11GHz to get the beat note with the PSL back. This corresponds to 2 mode hopes (5GHz per mode hope). We then compensated for this offset by decreasing the front panel temperature potentiometer by 1.40 units. It is about 3K or 3V per mode hope.

We also noticed that the clamp LED was on. This means the internal current limit is engaged. The manual recommends to back-off the diode current by 50mA.