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Hello fellow laser enthusiasts, I have kind of a stupid problem. Quite a while ago I got a defective blu-ray burner (from a Sony VGP-PRZ20A docking station), from which I saved the diode and threw everything else away. At that time I tried to test the diode, but failed probably because I was...

Hi fellow laser enthusiasts, stupid, quick question: what is a G2, G3... lens? I read that G2 is a single lens, G3 is a combination of three lenses and so on. However, I cannot find a definition of the different kinds of lenses (probably because the search does not allow to use two-digit...

Hi fellow laser enthusiasts, I already asked the question in my 'Welcome' thread, but I guess it is better to have a dedicated thread for this. Does anyone have experience with laser-marking or -engraving black anodized aluminum, i.e. removing the anodized layer to expose the bare aluminum? I...

Hi members, I am a physicist from Germany and professionally working with high-power lasers. Recently, I got interested using a laser diode for marking/engraving in a small project. Unfortunately, I have absolutely no experience with laser diodes and their capabilities in marking/engraving...