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I've just finished building my first Blue Ray laser, got today in the morning some nicely assembled diodes from BluRay :) It's build in a simple electronics project box, with a LM317-based variable current driver. Maximum current is set to 130mA, with a push button to get it to about 160. By...

I've just got off ebay a photodiode based laser power meter module, pretty simple, power sensor and a precision OpAmp to give a valuable output. From ebay's auction: Here are some photos of the circuit: As far as I've understood, I'm going to supply this with something like a dual ±15V...

Hello everyone, I'm Andrea from Italy, just another Flashaholic - laser fan :) I've decided to finally sign on these so nice forums after a couple of weeks of lurking :) I've had many lasers in the past, starting from small red modules up to a green pointer I broke some days ago triying to...