High-efficiency self-resetting integrating optical transceiver

A self-resetting integrating optical receiver, comprising

• a delay interferometer configured to receive a pre-coded optical input;
• dual photodetectors configured to receive outputs of the delay interferometer;
• and
• a capacitor configured to receive an output of the dual photodetectors, wherein the dual photodetectors and the capacitor are configured to perform an integrating and resetting functions based on the pre-coded optical input from a corresponding optical transmitter,
• wherein the pre-coded optical input has a 0 differential phase indicative of a 1 bit to set a charge on the capacitor for a setting function, +/−π/2 differential phase indicative of a hold so that the charge on the capacitor is held at a previous value by delivering equal intensity to the dual photodetectors for a holding function, and a π differential phase indicative of a 0 bit to reset the charge on the capacitor to zero for a resetting function.

A self-resetting integrating optical receiver, comprising

• a delay interferometer configured to receive a pre-coded optical input;
• dual photodetectors configured to receive outputs of the delay interferometer;
• and
• a capacitor configured to receive an output of the dual photodetectors, wherein the dual photodetectors and the capacitor are configured to perform an integrating and resetting functions based on the pre-coded optical input from a corresponding optical transmitter,
• wherein the data pre-coding includes an optical pulse transmitted on a first wavelength to set a charge on the capacitor for a setting function, no light indicative of a hold so that the charge on the capacitor is held at a previous value by delivering no light to the dual photodetectors for a holding function, and an optical pulse on a second wavelength indicative of a 0 bit to reset the charge on the capacitor for a resetting function, and
• wherein one of i) a wavelength demultiplexer at the self-resetting integrating optical receiver substantially directs the first wavelength to a first photodetector and the second wavelength to a second photodetector and ii) a first waveguide substantially directs the light to a first photodetector and the second waveguide substantially directs the light to a second photodetector.