Patent ID: 9204514
Filing Date: 2015-12-01
Classification: H01S,H05B

Abstract:
1. A laser control device comprising: a driver circuitry to supply a drive current to a laser diode (LD), the driver circuitry configured to output actual drive current values indicative of an actual drive current supplied to the laser diode (LD), a digital storage to store drive current values for a plurality of temperature conditions, the drive current values associated with a lookup table, and a central processing unit coupled to the digital storage, the central processing unit to control the driver circuitry in accordance with the drive current values from the lookup table and to enable updating of at least one of the drive current values associated with the lookup table to provide an updated lookup table, wherein the driver circuitry comprises a closed-loop control circuit for regulating the drive current to the laser diode (LD), wherein the central processing unit is configured to update the drive current values associated with the lookup table based on an actual convergence time of the closed-loop control circuit.