Q: Why, after my DPSS laser suddenly stopped working, do I see just a dim red light coming from the aperture?
A: DO NOT LOOK INTO THE APERTURE!!!!!!! This dim red light is actually being produced by an extremely powerful infrared laser. Since IR light is invisible, all we can see is the dim red light. Don't be fooled by the dimness, even in a 5mW DPSS laser the IR output is guaranteed to be at least 200mW, which is more than enough to fry your eyes. The reason that you can see this is because some of the internal parts of the laser have gone out of alignment..
this happened to me i think, how would you fix it?