Thank you so much for the clarification, these are the things I've needed to hear!!! Knowing that laser diodes can be switched on and off at rated currents without damaging them is great to know. Instead off overdriving and modulating the diode, I think I am going to just use a single GPIO...
Thank you for the response, I am currently using a Raspberry Pi 2 microntroller, I can use the GPIO pins to PWM a transistor? The problem is I still don't understand how a laser diode can be turned on and off that fast without shortening the diode life tremendously.
Thank you for the response. I bought a 2W 445nm laser (2 watts being its maximum optical output is my understanding) with a module and everything at this link.
http://www.amazon.com/445nm-Diode-Copper-Module-Element/dp/B00HFHJBDI
I used a spare computer power supply to power the driver/laser...
Hello everybody,
I've read a ton of threads on this forum while designing the laser engraver that I'm currently building. I decided to ask all your guys expertise on my 2W 445nm laser. I've made the typical laser driver with an LM317 and a 22uf capacitor. I have a raspberry pi 2 to use to...