Yun Kai came to the lab. We got the short pulse and long pulse to meet at TCC. We use Frodo's green laser and another green diode laser to align the beams, plus send the light to Frodo's Basler and the Streak Camera. The short pulse is very sensitive, since the travel distance is so much longer.

We were able to get an image of the both pulses, on our cameras, by inserting a Microscope slide at TCC to reflect the short pulse.

Notes for warming up:

• the max Flash lamp Voltage is 1205V, we have been aligning with 1135V or 1160V
• Before you open the AMP shutter. Set the Flash lamp to 1205 and turn on the NF and FF Beam Stabs. Then turn them off → set the flash lamp to 1135 → Open AMP shutter → Attenuator.

over the break oscillator was working but didn't mode lock when we got back. we walked the 2 cavity mirrors and the stepper motors to get a small mode lock. we ultimately Set the Stepper Motors to Default, Greased the slit motor threads. and did very small adjustment to the horiztonial knob of the M7 mirror. it became way more consistent now.

The slit motor travel is about 23mm or 87k counts.

the configuration for the MIT Users are 800nm at 40mJ after the Amp, with 0.8mm diameter beam, and 300ps pulses.

Damage threshold is Energy/ Area. and Power is Energy/PulseTime

Our laser rating for damage is 0.0795J/cm^2. per pulse