Unfortunately Photoshop is unable to export the right type of vector information we need for the lasers.
If you are familiar with Adobe products, we recommend using Adobe Illustrator to create your design.
You can save a high resolution black and white PNG from Photoshop and use an online conversion tool to create and SVG vector file.
Here's how to do that:
Upload a black and white PNG to https://www.pngtosvg.com/
Set the options to 1 color (black) and whatever simplification settings make sense
Download the SVG and upload it into your Ponoko account