Trimming of optical response for tunable photonic devices

A method of fabricating an optoelectronic circuit used with signal light and with supply power, the method comprising:

• forming one or more tunable photonic devices by fabricating each tunable photonic device with at least one optical characteristic being electronically tunable to condition the signal light, a fabricated performance of the at least one optical characteristic for each tunable photonic device being at a variance from a target performance of the at least one optical characteristic due to a difference in fabrication tolerance;
• forming at least one ground bus and at least one power bus configured to be connected to the supply power;
• forming one or more trimming banks each in electrical communication with an associated one of the one or more tunable photonic devices, the one or more trimming banks including a plurality of electronic components, the associated tunable photonic device being electronically tunable based on a total electronic value of the plurality of electronic components of the associated trimming bank;
• and
• independently tuning the at least one optical characteristic of at least one of the one or more tunable photonic devices by selectively configuring the electronic components in the trimming bank associated with the at least one tunable photonic device and diminishing the variance between the target and fabricated performances of the at least one optical characteristic for the at least one tunable photonic device.