Waveguide integrated superconducting single-photon detectors with high internal quantum efficiency at telecom wavelengths
Oliver Kahl,Simone Ferrari,Vadim Kovalyuk,Vadim Kovalyuk,Gregory Goltsman,Gregory Goltsman,Alexander Korneev,Alexander Korneev,Wolfram H. P. Pernice +8 more
TLDR
SNSPDs embedded in nanophotonic integrated circuits which achieve internal quantum efficiencies close to unity at 1550 nm wavelength allows for the SNSPDs to be operated at bias currents far below the critical current where unwanted dark count events reach milli-Hz levels while on-chip detection efficiencies above 70% are maintained.Abstract:
Superconducting nanowire single-photon detectors (SNSPDs) provide high efficiency for detecting individual photons while keeping dark counts and timing jitter minimal. Besides superior detection performance over a broad optical bandwidth, compatibility with an integrated optical platform is a crucial requirement for applications in emerging quantum photonic technologies. Here we present SNSPDs embedded in nanophotonic integrated circuits which achieve internal quantum efficiencies close to unity at 1550 nm wavelength. This allows for the SNSPDs to be operated at bias currents far below the critical current where unwanted dark count events reach milli-Hz levels while on-chip detection efficiencies above 70% are maintained. The measured dark count rates correspond to noise-equivalent powers in the 10−19 W/Hz−1/2 range and the timing jitter is as low as 35 ps. Our detectors are fully scalable and interface directly with waveguide-based optical platforms.read more
Citations
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Status and Potential of Lithium Niobate on Insulator (LNOI) for Photonic Integrated Circuits
Andreas Boes,Andreas Boes,Bill Corcoran,Bill Corcoran,Lin Chang,John E. Bowers,Arnan Mitchell,Arnan Mitchell +7 more
TL;DR: In this article, the authors review the latest developments in this platform, examine where further development is necessary to achieve more functionalities in LNOI integrated optical circuits and make a few suggestions of interesting applications that could be realized in the platform.
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Photonic quantum information processing: a review
TL;DR: A comprehensive review of the state of the art in this active field, with a due balance between theoretical, experimental and technological results, can be found in this article, where significant achievements are presented in tables or in schematic figures, in order to convey a global perspective of the several horizons that fall under the name of photonic quantum information.
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Photonic quantum information processing: A concise review
TL;DR: The photonic quantum computing represents an exciting path to medium and large-scale processing as mentioned in this paper, and the development of integrated platforms, improved sources and detectors, novel noise-tolerant theoretical approaches, and more have solidified it as a leading contender for both quantum information processing and quantum networking.
Journal ArticleDOI
Photonic quantum information processing: a review
TL;DR: The goal of this manuscript is to provide the reader with a comprehensive review of the state of the art in this active field with a due balance between theoretical, experimental and technological results.
Journal ArticleDOI
Integrated sources of photon quantum states based on nonlinear optics
Lucia Caspani,Chunle Xiong,Benjamin J. Eggleton,Daniele Bajoni,Marco Liscidini,Matteo Galli,Roberto Morandotti,David J. Moss +7 more
TL;DR: Recent advances in the realisation of integrated sources of photonic quantum states are reviewed, focusing on approaches based on nonlinear optics that are compatible with contemporary optical fibre telecommunications and quantum memory platforms as well as with chip-scale semiconductor technology.
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