GreatScottLab’s instructable on how to make your own constant current source and how to get a ‘burning’ laser diode:
In this project I will show you how I extracted a laser diode from a DVD Burner which should have the power to ignite a match. In order to power the diode correctly I will also demonstrate how I build a constant current source which delivers a precise and steady current to the load.
Check out the video after the break.
Certainly is a “dangerous prototype”! If powerful enough to ignite a match, the laser is certainly powerful enough to blind you (that’s your problem) or an innocent passer-by.
Old laser hands know just how dangerous specular reflections can be, and live by the motto “Do not look into laser with remaining eye”!
Especially IR laser – cannot see the beam. Wear laser safety goggles AT ALL TIMES when power is on or can be.