I'm looking to reduce the cost of a lidar system by replacing the DPSS laser with a blue pulsed laser diode (this is for an underwater project)
Is there a rule of thumb for the appropriate current to use to generate nanosecond pulses from a CW diode?
Particularly I am thinking of 1.6W 450nm diode being driven at 20kHz (so 0.01% duty cycle?)
Also, is what I am investigating at all practical?!