The scanned figure is uneven at the bottom

1.Possible cause analysis of failure:There are some problems with the parameters.
a.Readjust the scanning parameters.
b.Scanning mode:If the special mode is enabled,the laser power should be increased.The lower the spot percentage,the more laser power attenuation,and the higher the laser power should be set to achieve the same scanning depth.The purpose of selecting a special mode is to make the laser emit light for a short time with high power,so that the bottom of the laser can be flat when scanning in depth.