I'm trying to make a laser detection circuit, and I need to modulate a laser (I have a 5mw laser diode module) at a certain frequency so that the detector can bandpass filter to that frequency.
my question is about the circuitry involved to drive the laser. Am I basically just looking for a square wave generator at a certain frequency?
I've been looking for ICs made to do what I need, but have not had any luck, somewhere in a post someone said Maxim may have something for laser modulation, but I've had no luck at their site.
does anyone know of any ICs that would work?
Thanks
my question is about the circuitry involved to drive the laser. Am I basically just looking for a square wave generator at a certain frequency?
I've been looking for ICs made to do what I need, but have not had any luck, somewhere in a post someone said Maxim may have something for laser modulation, but I've had no luck at their site.
does anyone know of any ICs that would work?
Thanks