Hi y'all, i am havin this project that requires a near IR laser transmitter, for sake of safety and low power, i wanna use a laser diode module (as source), class2 (no hazard ) with a wavelength 850-900 nm .I can't find anything lower than 3 mw in spectrum which is the class 3b. Any suggestion N.B: i wanna modulate it to carry an audio signal