A system comprising: a laser diode for illuminating a rendering of content of video data on a display screen , the laser diode comprising an anode and a cathode; a current source comprising an input and an output, the output of the current source coupled to the anode of the laser diode; a first voltage source comprising an input and an output, the output of the first voltage source coupled to the input of the current source, the input of the first voltage source coupled to a ground node , the first voltage source generating a positive supply voltage (V +) driving the input of the current source; a second voltage source comprising an input and an output, the output of the second voltage source coupled to the cathode of the laser diode, the input of the second voltage source coupled to the ground node , the second voltage source generating a negative supply voltage (V-) to provide sufficient compliance for the laser diode to emit light; a voltage sensor having an input coupled to the anode of the laser diode, the voltage sensor monitoring a voltage between the anode of the laser diode and the ground node ; and a controller coupled to a control input of the second voltage source and an output of the voltage sensor , wherein the controller is configured to cause the voltage sensor to determine peak voltage readings at the anode of the laser diode at a predetermined sample rate, and wherein the controller is further configured to cause the second voltage source to adjust the negative supply voltage (V-) in response to a detection of the new peak voltage readings to avoid saturation of the laser diode. a laser diode for illuminating a rendering of content of video data on a display screen , the laser diode comprising an anode and a cathode; a current source comprising an input and an output, the output of the current source coupled to the anode of the laser diode; a first voltage source comprising an input and an output, the output of the first voltage source coupled to the input of the current source, the input of the first voltage source coupled to a ground node , the first voltage source generating a positive supply voltage (V +) driving the input of the current source; a second voltage source comprising an input and an output, the output of the second voltage source coupled to the cathode of the laser diode, the input of the second voltage source coupled to the ground node , the second voltage source generating a negative supply voltage (V-) to provide sufficient compliance for the laser diode to emit light; a voltage sensor having an input coupled to the anode of the laser diode, the voltage sensor monitoring a voltage between the anode of the laser diode and the ground node ; and a controller coupled to a control input of the second voltage source and an output of the voltage sensor , wherein the controller is configured to cause the voltage sensor to determine peak voltage readings at the anode of the laser diode at a predetermined sample rate, and wherein the controller is further configured to cause the second voltage source to adjust the negative supply voltage (V-) in response to a detection of the new peak voltage readings to avoid saturation of the laser diode. <EOS>