Hello,
I understand that you don't rate your DLP products for femtosecond lasers, but I wanted to know if the combination of exposure times and laser parameters are within a ballpark damage threshold.
The laser pulses are 800 nm, 1 Khz rep rate, pulse duration ~ 40 fs and ~ 50 mW average power on the DMD.
The problem is that the DMD freezes after only a few seconds of laser illumination. After this happens, the only thing that seems to help is to wait for a few minutes before restarting the DMD (to cool it down, I imagine). The exposure times are ~ 200 ms. Would it help to isolate the DMD from mechanical vibrations/movement during laser illumination? Based on the laser parameters given, is the peak energy high enough to lead to surface ablation and thus damage of the DMD surface? How to tell if the DMD needs to be replaced?
Thank you!
Thej