An automatic power control circuit for {HEAD ~ a laser driver} includes precharge circuitry to precharge inputs to a comparator receiving {TAIL ~ an indication} of laser output power, for example from a monitor photodiode 
An automatic power control circuit for { HEAD ~ a laser driver } includes precharge circuitry to precharge inputs to a comparator receiving { TAIL ~ an indication } of laser output power , for example from a monitor photodiode
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH