▎ 摘　　要

NOVELTY - The cryogenic optoelectronic modulator has a voltage input port that is configured to receive one input signal having a full scale magnitude less than about 10 mV. A pathway is configured to carry the one input signal, which is superconducting at temperatures below 100K. An optical carrier input port is configured to receive an optical carrier wave. An electro-optic modulator is configured to operate at a cryogenic temperature less than about 100 K, comprising one layer of graphene that is configured to modulate the optical carrier wave in dependence on one input signal to produce a modulated optical carrier wave. A modulated optical output port is configured to transmit the modulated optical carrier wave. USE - Cryogenic optoelectronic modulator. ADVANTAGE - The margin allows the performance to be extended, at the expense of throughput, by use of error detection and correction codes, as well as redundancy. The analysis makes clear that the integrated graphene modulator at 4 K is the most promising approach, in terms of minimum energy, channel scaling, and compatibility of fabrication with the superconducting circuits. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) an optical modulator; and (2) an electro-optic communication method. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of the optoelectonic signal output from superconducting circuit, using the cryogenic graphene electro-optic modulator without a cooled transistor amplifier.