Controlled-NOT operation of SiN-photonic circuit using photon pairs from silicon-photonic circuit
Jong-Moo Lee, Wook‐Jae Lee, Minsu Kim, Sungwan Cho, Jung Jin Ju, Gabrielė Navickaitė, Juan Pêdro Solano Fernández
Abstract
We demonstrate controlled-NOT (CNOT) operation of a silicon nitride photonic integrated circuit using path-entangled photon pairs from a silicon-photonic integrated circuit as logical inputs. The CNOT gate is constructed by combining several silicon-nitride Mach–Zehnder interferometers for a linear-optical quantum gate. We package each of the two photonic circuits with electrical wire bonding and optical fiber bonding for stable measurement. The logical-basis fidelity of CNOT operation is measured better than 81% for the fully packaged photonic circuits.
Topics & Concepts
PhotonicsControlled NOT gatePhotonic integrated circuitOptoelectronicsSilicon photonicsElectronic circuitSilicon on insulatorMaterials sciencePhysicsQuantum gateSiliconQuantum computerQuantumQuantum mechanicsNeural Networks and Reservoir ComputingPhotonic and Optical DevicesQuantum Information and Cryptography