A system for optical transduction of quantum information, comprising: a qubit chip comprising a plurality of data qubits configured to operate at microwave frequencies; a transduction chip (200, 300) spaced apart from said qubit chip, said transduction chip comprising a microwave-to-optical frequency transducer (202, 306, 308), wherein said microwave-to-optical frequency transducer comprises a microwave waveguide (204, 310, 312) coupled to a device (206, 314, 316) configured to operate in an optical frequency domain, wherein said device comprises an optical resonator, where said transduction chip further comprises an optical pump line (208, 318, 320) coupled to said optical resonator, wherein said optical pump line is configured to transmit said quantum information as an optical-frequency signal; and an interposer (216, 322) coupled to said qubit chip and said transduction chip, said interposer comprising a dielectric material (218, 324) comprising a plurality of superconducting microwave waveguides (220, 326, 328) formed therein, wherein said plurality of superconducting microwave waveguides is configured to transmit quantum information from said plurality of data qubits to said microwave-to-optical frequency transducer, and wherein said microwave-to-optical frequency transducer is configured to transduce said quantum information from said microwave frequencies to optical frequencies, wherein said transduction chip (200, 300) comprises a plurality of transduction qubits (302, 304), and wherein said transduction chip (200, 300) further comprises a plurality of microwave-to-optical frequency transducers (202, 306, 308), and wherein each of said plurality of transduction qubits (302, 304), is coupled to one of said plurality of microwave-to-optical frequency transducers (202, 306, 308), in a one-to-one coupling between said plurality of transduction qubits (302, 304) and said plurality of microwave-to-optical frequency transducers (202, 306, 308), wherein said superconducting plurality of microwave waveguides (204, 310, 312) is configured to transmit quantum information from said plurality of data qubits to said plurality of transduction qubits via microwave photons. a qubit chip comprising a plurality of data qubits configured to operate at microwave frequencies; a transduction chip (200, 300) spaced apart from said qubit chip, said transduction chip comprising a microwave-to-optical frequency transducer (202, 306, 308), wherein said microwave-to-optical frequency transducer comprises a microwave waveguide (204, 310, 312) coupled to a device (206, 314, 316) configured to operate in an optical frequency domain, wherein said device comprises an optical resonator, where said transduction chip further comprises an optical pump line (208, 318, 320) coupled to said optical resonator, wherein said optical pump line is configured to transmit said quantum information as an optical-frequency signal; and an interposer (216, 322) coupled to said qubit chip and said transduction chip, said interposer comprising a dielectric material (218, 324) comprising a plurality of superconducting microwave waveguides (220, 326, 328) formed therein, wherein said plurality of superconducting microwave waveguides is configured to transmit quantum information from said plurality of data qubits to said microwave-to-optical frequency transducer, and wherein said microwave-to-optical frequency transducer is configured to transduce said quantum information from said microwave frequencies to optical frequencies, wherein said transduction chip (200, 300) comprises a plurality of transduction qubits (302, 304), and wherein said transduction chip (200, 300) further comprises a plurality of microwave-to-optical frequency transducers (202, 306, 308), and wherein each of said plurality of transduction qubits (302, 304), is coupled to one of said plurality of microwave-to-optical frequency transducers (202, 306, 308), in a one-to-one coupling between said plurality of transduction qubits (302, 304) and said plurality of microwave-to-optical frequency transducers (202, 306, 308), wherein said superconducting plurality of microwave waveguides (204, 310, 312) is configured to transmit quantum information from said plurality of data qubits to said plurality of transduction qubits via microwave photons.