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Operating with flat mirror mode

Hi,

We are hoping to use a DLP to control the spatial profile of a high power, short-pulse laser.  However, the tilt of the pixels causes both diffraction losses and pulse-front tilt.  The second issue is actually the more serious; the pulse front tilt (~10ps/cm) can be several times longer than the initial laser pulse length.  

I know that it's currently not possible to have the DLP operate with some pixels flat ("floated") and others tilted, but I'm wondering if it's possible to modify the device to make this mode possible?   I realize this probably requires hardware changes, but since it's looking like it might be a deal-breaker for our application I thought I'd check to see. Thanks!

-Daniel

  • Hi Daniel,

    Welcome to the DLP section of the TI-E2E community!

    Unfortunately there is no way to operate the DMD with some pixels in the flat state, or  "parked," and some pixels on and/or off. When the mirrors are activated, they must be either in the "on" or "off" state.

    Please let us know if you have any additional questions!

    Trevor