Engineering telecom single-photon emitters in silicon for scalable quantum photonics

Hollenbach, Michael; Berencén, Yonder; Kentsch, Ulrich; Helm, M.; Астахов, Г. В.

doi:10.1364/oe.397377

Cited by 59 publications

(65 citation statements)

References 44 publications

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“…The W and G centers exhibit some of the brightest emission of any SECs, and are promising as SPSs. In the past year, first measurements of single-photon emission from G centers have been reported [116,117], and single SECs across the telecom wavelength range have also been observed in carbon-implanted silicon [118]. A silicon photonic spin-donor qubit quantum computing platform has recently been proposed [119], with the idea of using photonic coupling between chalcogenide spin qubits in silicon (figure 17(ii)).…”

Section: Statusmentioning

confidence: 99%

2022 Roadmap on integrated quantum photonics

et al. 2022

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Integrated photonics will play a key role in quantum systems as they grow from few-qubit prototypes to tens of thousands of qubits. The underlying optical quantum technologies can only be realized through the integration of these components onto quantum photonic integrated circuits (QPICs) with accompanying electronics. In the last decade, remarkable advances in quantum photonic integration have enabled table-top experiments to be scaled down to prototype chips with improvements in efficiency, robustness, and key performance metrics. These advances have enabled integrated quantum photonic technologies combining up to 650 optical and electrical components onto a single chip that are capable of programmable quantum information processing, chip-to-chip networking, hybrid quantum system integration, and high-speed communications. In this roadmap article, we highlight the status, current and future challenges, and emerging technologies in several key research areas in integrated quantum photonics, including photonic platforms, quantum and classical light sources, quantum frequency conversion, integrated detectors, and applications in computing, communications, and sensing. With advances in materials, photonic design architectures, fabrication and integration processes, packaging, and testing and benchmarking, in the next decade we can expect a transition from single- and few-function prototypes to large-scale integration of multi-functional and reconfigurable devices that will have a transformative impact on quantum information science and engineering.

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Section: Statusmentioning

confidence: 99%

2022 Roadmap on integrated quantum photonics

et al. 2022

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“…Several silicon point defects typically quenched at room-temperature emerge as narrow-linewidth candidates for light sources in the telecommunications band (Davies, 1989;Sumikura et al, 2014;Buckley et al, 2017;Beaufils et al, 2018;Chartrand et al, 2018). While single-photon emission (Bergeron et al, 2020;Hollenback et al, 2020;Redjem et al, 2020) is not the objective in the present context, the narrow linewidth is also attractive for further efficiency gains via the Purcell Effect (Romeira and Fiore, 2018). LEDs have already been demonstrated with the W-center defect (Bao et al, 2007;Buckley et al, 2017), albeit with poor (10 −6 ) efficiencies, limited by electrical injection efficiency rather than emitter lifetime.…”

Section: Integrated Light Sourcesmentioning

confidence: 99%

Considerations for Neuromorphic Supercomputing in Semiconducting and Superconducting Optoelectronic Hardware

Primavera

Shainline

2021

Front. Neurosci.

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Any large-scale spiking neuromorphic system striving for complexity at the level of the human brain and beyond will need to be co-optimized for communication and computation. Such reasoning leads to the proposal for optoelectronic neuromorphic platforms that leverage the complementary properties of optics and electronics. Starting from the conjecture that future large-scale neuromorphic systems will utilize integrated photonics and fiber optics for communication in conjunction with analog electronics for computation, we consider two possible paths toward achieving this vision. The first is a semiconductor platform based on analog CMOS circuits and waveguide-integrated photodiodes. The second is a superconducting approach that utilizes Josephson junctions and waveguide-integrated superconducting single-photon detectors. We discuss available devices, assess scaling potential, and provide a list of key metrics and demonstrations for each platform. Both platforms hold potential, but their development will diverge in important respects. Semiconductor systems benefit from a robust fabrication ecosystem and can build on extensive progress made in purely electronic neuromorphic computing but will require III-V light source integration with electronics at an unprecedented scale, further advances in ultra-low capacitance photodiodes, and success from emerging memory technologies. Superconducting systems place near theoretically minimum burdens on light sources (a tremendous boon to one of the most speculative aspects of either platform) and provide new opportunities for integrated, high-endurance synaptic memory. However, superconducting optoelectronic systems will also contend with interfacing low-voltage electronic circuits to semiconductor light sources, the serial biasing of superconducting devices on an unprecedented scale, a less mature fabrication ecosystem, and cryogenic infrastructure.

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“…Silicon has recently been proven to be instrumental for hosting sources of single-photons emitting in the strategic optical telecommunication O-band (1260-1360 nm) [3][4][5]. The origin of the telecom single-photon emitters is a carbon-irradiation induced damage center in silicon, the so-called G-center [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…The origin of the telecom single-photon emitters is a carbon-irradiation induced damage center in silicon, the so-called G-center [6,7]. These single-photon emitters are created at sufficiently low carbon concentrations, whereby two or more of the G center defects do not interact with each other [3]. The scalability, brightness, purity and collection efficiency of these single-photon emitters are key issues in bringing them closer to practical applications.…”

Section: Introductionmentioning

confidence: 99%

A photonic platform hosting telecom photon emitters in silicon

Hollenbach¹,

Jagtap²,

Fowley³

et al. 2021

Preprint

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Silicon, a ubiquitous material in modern computing, is an emerging platform for realizing a source of indistinguishable single-photons on demand. The integration of recently discovered single-photon emitters in silicon into photonic structures, is advantageous to exploit their full potential for integrated photonic quantum technologies. Here, we show the integration of telecom photon emitters in a photonic platform consisting of silicon nanopillars. We developed a CMOS-compatible nanofabrication method, enabling the production of thousands of individual nanopillars per square millimeter with state-of-the-art photonic-circuit pitch, all the while being free of fabrication-related radiation damage defects. We found a waveguiding effect of the 1278 nm-G center emission along individual pillars accompanied by improved brightness, photoluminescence signal-to-noise ratio and photon extraction efficiency compared to that of bulk silicon. These results unlock clear pathways to monolithically integrating single-photon emitters into a photonic platform at a scale that matches the required pitch of quantum photonic circuits.

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Engineering telecom single-photon emitters in silicon for scalable quantum photonics

Cited by 59 publications

References 44 publications

2022 Roadmap on integrated quantum photonics

2022 Roadmap on integrated quantum photonics

Considerations for Neuromorphic Supercomputing in Semiconducting and Superconducting Optoelectronic Hardware

A photonic platform hosting telecom photon emitters in silicon

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