On-chip integration of reconfigurable quantum photonics with superconducting photodetectors

2021 ◽  
Author(s):  
Samuel Gyger ◽  
Julien Zichi ◽  
Lucas Schweickert ◽  
Ali W. Elshaari ◽  
Stephan Steinhauer ◽  
...  
Keyword(s):  
On Chip ◽  
Quantum Photonics

scholarly journals Hybrid integration methods for on-chip quantum photonics

Optica ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 291 ◽  
Author(s):  
Je-Hyung Kim ◽  
Shahriar Aghaeimeibodi ◽  
Jacques Carolan ◽  
Dirk Englund ◽  
Edo Waks
Keyword(s):  
Hybrid Integration ◽  
Integration Methods ◽  
On Chip ◽  
Quantum Photonics

scholarly journals Microring Mixers and Tunable Filters in Silicon Photonics (Project Report 1201308-Y3)

2021 ◽  
Author(s):  
Shayan Mookherjee
Keyword(s):  
Silicon Photonics ◽  
Tunable Filters ◽  
Tunable Filter ◽  
Integrated Photonics ◽  
Project Report ◽  
The Third ◽  
Funded Project ◽  
On Chip ◽  
Quantum Photonics ◽  
Photonics Devices

The main goal of this NSF-funded project [1201308 - Year 3] is to develop integrated photonics devices based on silicon photonics which can be used for compact and efficient nonlinear classical and quantum photonics applications. During the third year of this project, we demonstrated the combination of an on-chip ring mixer and a tunable filter.

scholarly journals Reconfigurable photonics with on-chip single-photon detectors

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Samuel Gyger ◽  
Julien Zichi ◽  
Lucas Schweickert ◽  
Ali W. Elshaari ◽  
Stephan Steinhauer ◽  
...  
Keyword(s):  
Adaptive Control ◽  
Large Scale ◽  
Dynamic Range ◽  
Single Photon ◽  
Scale Up ◽  
Photon Detectors ◽  
Photonic Circuits ◽  
Single Photon Detectors ◽  
On Chip ◽  
Quantum Photonics

AbstractIntegrated quantum photonics offers a promising path to scale up quantum optics experiments by miniaturizing and stabilizing complex laboratory setups. Central elements of quantum integrated photonics are quantum emitters, memories, detectors, and reconfigurable photonic circuits. In particular, integrated detectors not only offer optical readout but, when interfaced with reconfigurable circuits, allow feedback and adaptive control, crucial for deterministic quantum teleportation, training of neural networks, and stabilization of complex circuits. However, the heat generated by thermally reconfigurable photonics is incompatible with heat-sensitive superconducting single-photon detectors, and thus their on-chip co-integration remains elusive. Here we show low-power microelectromechanical reconfiguration of integrated photonic circuits interfaced with superconducting single-photon detectors on the same chip. We demonstrate three key functionalities for photonic quantum technologies: 28 dB high-extinction routing of classical and quantum light, 90 dB high-dynamic range single-photon detection, and stabilization of optical excitation over 12 dB power variation. Our platform enables heat-load free reconfigurable linear optics and adaptive control, critical for quantum state preparation and quantum logic in large-scale quantum photonics applications.

A New Paradigm for On-chip Quantum Photonics: Highly Uniform Single Photon Source Arrays

2021 ◽  
Author(s):  
Jiefei Zhang ◽  
Qi Huang ◽  
Swarnabha Chattaraj ◽  
Lucas Jordao ◽  
Siyuan Lu ◽  
...  
Keyword(s):  
Single Photon ◽  
Single Photon Source ◽  
New Paradigm ◽  
On Chip ◽  
Quantum Photonics ◽  
Highly Uniform ◽  
Photon Source

scholarly journals Multifrequency sources of quantum correlated photon pairs on-chip: a path toward integrated Quantum Frequency Combs

Nanophotonics ◽  
2016 ◽  
Vol 5 (2) ◽  
pp. 351-362 ◽  
Author(s):  
Lucia Caspani ◽  
Christian Reimer ◽  
Michael Kues ◽  
Piotr Roztocki ◽  
Matteo Clerici ◽  
...  
Keyword(s):  
Information Transfer ◽  
Frequency Comb ◽  
Polarization Degree ◽  
Quantum Frequency ◽  
Frequency Combs ◽  
Computing Platform ◽  
Photon Pairs ◽  
Low Efficiency ◽  
On Chip ◽  
Quantum Photonics

AbstractRecent developments in quantum photonics have initiated the process of bringing photonic-quantumbased systems out-of-the-lab and into real-world applications. As an example, devices to enable the exchange of a cryptographic key secured by the laws of quantum mechanics are already commercially available. In order to further boost this process, the next step is to transfer the results achieved by means of bulky and expensive setups into miniaturized and affordable devices. Integrated quantum photonics is exactly addressing this issue. In this paper, we briefly review the most recent advancements in the generation of quantum states of light on-chip. In particular, we focus on optical microcavities, as they can offer a solution to the problem of low efficiency that is characteristic of the materials typically used in integrated platforms. In addition, we show that specifically designed microcavities can also offer further advantages, such as compatibility with telecom standards (for exploiting existing fibre networks) and quantum memories (necessary to extend the communication distance), as well as giving a longitudinal multimode character for larger information transfer and processing. This last property (i.e., the increased dimensionality of the photon quantum state) is achieved through the ability to generate multiple photon pairs on a frequency comb, corresponding to the microcavity resonances. Further achievements include the possibility of fully exploiting the polarization degree of freedom, even for integrated devices. These results pave the way for the generation of integrated quantum frequency combs that, in turn, may find important applications toward the realization of a compact quantum-computing platform.

Integrating quantum photonics and microwaves in a rare-earth ion on-chip architecture (Conference Presentation)

2018 ◽  
Author(s):  
John G. Bartholomew ◽  
Jake Rochman ◽  
Tian Zhong ◽  
Jonanthan M. Kindem ◽  
Raymond Lopez-Rios ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Ion ◽  
On Chip ◽  
Quantum Photonics

scholarly journals Rydberg excitons in Cu2O microcrystals grown on a silicon platform

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Stephan Steinhauer ◽  
Marijn A. M. Versteegh ◽  
Samuel Gyger ◽  
Ali W. Elshaari ◽  
Birgit Kunert ◽  
...  
Keyword(s):  
Oxidation Process ◽  
Material System ◽  
Bulk Crystals ◽  
Wide Spread ◽  
Novel Device ◽  
Solar Water Splitting ◽  
Large Exciton Binding Energy ◽  
On Chip ◽  
Atomic States ◽  
Quantum Photonics

AbstractCuprous oxide (Cu2O) is a semiconductor with large exciton binding energy and significant technological importance in applications such as photovoltaics and solar water splitting. It is also a superior material system for quantum optics that enabled the observation of intriguing phenomena, such as Rydberg excitons as solid-state analogue to highly-excited atomic states. Previous experiments related to excitonic properties focused on natural bulk crystals due to major difficulties in growing high-quality synthetic samples. Here, the growth of Cu2O microcrystals with excellent optical material quality and very low point defect levels is presented. A scalable thermal oxidation process is used that is ideally suited for integration on silicon, demonstrated by on-chip waveguide-coupled Cu2O microcrystals. Moreover, Rydberg excitons in site-controlled Cu2O microstructures are shown, relevant for applications in quantum photonics. This work paves the way for the wide-spread use of Cu2O in optoelectronics and for the development of novel device technologies.

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