My name is Angelo and I am new to the forum, I've been reading some of the posts and figure I would ask for help as it seems there are many experts on this forum. Anyways, I have a 3D printer that uses a Spectra Physics solid state laser Nd:YVO4 and recently my power has dropped by more than 50%, from 101 mw to 44 mw. I have been trying to diagnose the problem and have had no luck. I was wondering if anyone out there have any experience with this type of laser and could help me out. I have attached pictures of the inside of the laser and circled the part where I think is the problem. What do you guys think? What is this part called? Is it normal for it to be black when the other one in the laser is copper?
Thank you in advance for your help and your time.