Learned behavior optical power source controller
OwnerZvi Regev, Alon Regevinventors
Life of this patent
Estimating the term…
Abstract
A controller for an optical power source such as a laser diode which detects environmental conditions and adjusts an input control signal to force the correct output power. The controller learns a specific optical sub-system's output characteristics according to environmental parameters measured by the sub-system's own sensors, and then controls the control input by calculating a very precise approximation from that knowledge. Optionally, the controller could monitor the actual output power, making adjustments to its knowledge as necessary. This would compensate for any time drift in the characteristics of the sub-system. Finally, the controller can detect when the sub-system starts to fail by monitoring how its output power characteristics change with time.
Claims9
An optical sub-system for producing an output signal in response to an input signal, wherein a plurality of operating parameters included within the optical sub-system may change in value as a function of variations in the optical sub-system environment, the changes resulting in unwanted variations in the output signal, comprising:
- a processor embedded within the optical sub-system;
- a memory programmed to include a vector of states, derived from calibration using the sub-system's own laser and sensors, allowing the processor to calculate at any moment, from the sensed environmental parameters, an approximation to the control input needed to produce the desired output signal.
Dependencies are inferred from the claim text.