Got a project where I'd like to turn a laser on and off somewhat quickly, on the order of turning the laser on for as little as 20ms to upwards of 1s.
with the laser controlled by a mosfet; it appears the laser takes much longer to turn off and on that trying to turn it on for most intervals in this range results in no output.
so I'm thinking I may just turn the laser on, put a bigger heatsink on it, and find a fast way to block and unblock the beam. Not a burning laser so that shouldn't be an issue.
any ideas? Stepper motor or servo to whip a cover in and out of place?