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    4 MHz driver for 50 mW 405 nm laser driver

    Hello, I am trying to modulate at least a 1 Mhz digital signal into the laser beam of the 50 mW 405 nm laser diode SLD3232VF. The signal comes from MCU @ 3.3V logic level - however it can be shifted as needed. I started with the simplest setup - LM317 with BC337 transistor which can pull the...


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