RAISE-­EQuiP: Single-­Chip, Wall-­Plug Photon Pair Source and CMOS Quantum Systems on Chip

Project: Research project

Project Details


Proposed Concept: Our vision is to develop silicon quantum electronic-­photonic systems-­on-­chip (QSoCs) that will be enablers of quantum communications networks between quantum nodes (which may become available commercially on a 3-­5 year timeframe). Such networks can allow the scaling of quantum processing power in a way similar to the parallelism of interconnected cores or servers in classical data centers and supercomputers. QSoCs will contain linear and nonlinear optical functions, as well as the required low and high speed electronics needed to implement a high level quantum “function” on a single chip. This allows sophisticated integrated feedback control, scalability/manufacturability (CMOS), high performance photonics [1], and building blocks that will be reusable in design (as a “quantum electronic-­photonic IP library”) in a similar way as electronic circuit blocks are currently reused hierarchically in chip design to enable more complex systems. We propose to demonstrate a “wall plug” single-­chip all-­integrated source of photon pairs – a fundamental building block of most quantum photonic systems, with a high efficiency and rate (target 1MHz after all filtering) and reconfigurable factorizable state (allowing heralding). No such device exists despite the fact that a rack-­mounted fiber-­nonlinearity-­based source of this kind for lab use has been commercialized for almost a decade [2]. We aim in the proposed project to change this quantum technology landscape and demonstrate a fully integrated single-­ chip quantum transmitter system. The on-­chip photonic circuit will contain pre-­ and post-­source linear pump filtering, a resonant nonlinear spontaneous four-­wave-­mixing (SFWM) photon-­pair source, a pump pulse carver to allow active matching of the pump pulse duration to the source’s bandwidth to control the joint spectral intensity (for a factorizable or other engineered biphoton state), and ultra-
Effective start/end date10/1/189/30/22


  • Boston University (4500002864 // ECCS-1842692)
  • National Science Foundation (4500002864 // ECCS-1842692)


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