Method And System For Waveguide Delay Based Equalization With Summing At Single-Ended To Differential Converters In Optical Communication

A system for communication, the system comprising:

• an optoelectronic receiver comprising a directional coupler, first and second photodetectors, first and second transimpedance amplifiers (TIAs), and a gain stage, the optoelectronic receiver being operable to:
• receive an input optical signal;
• split the input optical signal into first and second optical signals using the directional coupler;
• generate a first electrical current from the first optical signal using a first photodetector;
• generate a first voltage from the first electrical current using the first TIA;
• communicate the first voltage to a first input of the gain stage;
• generate a second electrical current from the second optical signal using the second photodetector;
• generate a second voltage from the first electrical signal using the second TIA;
• communicate the second voltage to a second input of the gain stage;
• and
• generate a differential output voltage from the first and second voltages using the gain stage.

A system for communication, the system comprising:

• an optoelectronic receiver comprising a directional coupler, first and second photodetectors, first and second transimpedance amplifiers (TIAs), and a gain stage, the optoelectronic receiver being operable to:
• receive an input optical signal;
• split the input optical signal into first and second optical signals using the directional coupler;
• delay the first optical signal;
• generate a first electrical current from the delayed first optical signal using a first photodetector;
• generate a first voltage from the first electrical current using the first TIA;
• communicate the first voltage to a first input of the gain stage;
• generate a second electrical current from the second optical signal using the second photodetector;
• generate a second voltage from the first electrical signal using the second TIA;
• communicate the second voltage to a second input of the gain stage;
• and
• generate a differential output voltage from the first and second voltages using the gain stage.