Detecting errors in optical messages

A method comprising:

• receiving a constraint signal at an injection point into a series of a plurality of optical gates;
• determining that the constraint signal incurred an overall phase shift through the series of the plurality of optical gates, wherein the overall phase shift is indicative of a corrupted bit of a message;
• increasing a power level in response to the determining that the constraint signal incurred the overall phase shift via constructive interference with an additional signal;
• repeating the determining and the increasing until the power level exceeds a power level threshold of at least one of the plurality of optical gates indicating that the at least one of the plurality of optical gates is a source of the corrupted bit;
• and
• switching an internal state of the at least one of the plurality of optical gates in response to the power level threshold being exceeded.

A method comprising:

• receiving, at an optical gate, a constraint signal;
• determining that a wavelength of the constraint signal matches a resonant wavelength of a resonator of the optical gate;
• applying a phase shift stored in the resonator to the constraint signal that contributes to an overall phase shift of the constraint signal;
• receiving, at the optical gate, a subsequent constraint signal that includes the constraint signal that constructively interferes with additional constraint signals, wherein a power level of the subsequent constraint signal exceeds a power level threshold of the optical gate indicating an error in the constraint signal;
• and
• switching an internal state of the optical gate in response to the power level threshold being exceeded.