Patent ID: 7724792

Claim:
A laser power control system, comprising: a first circuit that generates an analog current, wherein a data threshold current is generated by a laser driver based upon at least the analog current, the data threshold current being employed to generate a data value in a data signal employed to drive a laser diode; a second circuit that employs a clocked component that generates a binary output, the binary output being generated depending upon a comparison between a target threshold current and a feedback current generated from a laser output of the laser diode; the first circuit being configured to adjust a magnitude of the analog current based upon the binary output, where adjustment of the analog current causes adjustment of the data threshold current while the data threshold current is employed to generate the data value in the data signal; and wherein the adjustment of the magnitude of the analog current based upon the binary output occurs upon a predefined transition in a clock signal, the clock signal generated based upon occurrences of multiple consecutive digits of equal value in the data signal, and a time duration of a 50% duty cycle of the clock signal is greater than a time duration of a maximum number of multiple consecutive digits of equal value that is allowed to be transmitted by the laser diode.