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Kovalyuk, V.; Ferrari, S.; Kahl, O.; Semenov, A.; Lobanov, Y.; Shcherbatenko, M.; Korneev, A.; Pernice, W.; Goltsman, G. |
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Waveguide integrated superconducting single-photon detector for on-chip quantum and spectral photonic application |
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Conference Article |
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2017 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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917 |
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062032 |
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SSPD, SNSPD, waveguide |
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With use of the travelling-wave geometry approach, integrated superconductor- nanophotonic devices based on silicon nitride nanophotonic waveguide with a superconducting NbN-nanowire suited on top of the waveguide were fabricated. NbN-nanowire was operated as a single-photon counting detector with up to 92 % on-chip detection efficiency in the coherent mode, serving as a highly sensitive IR heterodyne mixer with spectral resolution (f/df) greater than 106 in C-band at 1550 nm wavelength |
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RPLAB @ kovalyuk @ |
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1140 |
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Korneev, A.; Kovalyuk, V.; Ferrari, S.; Kahl, O.; Pernice, W.; An, P.; Golikov, A.; Zubkova, E.; Goltsman, G. |
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Title |
Superconducting Single-Photon Detectors for Integrated Nanophotonics Circuits |
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Conference Article |
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2017 |
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16th ISEC |
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16th ISEC |
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1-3 |
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SSPD, SNSPD |
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We present an overview of our recent achievements in integration of superconducting nanowire single-photon detectors SNSPD with dielectric optical waveguides. We are able to produce complex nanophotonics integrated circuits containing optical elements and photon detector on single chip thus producing a compact integrated platform for quantum optics applications. |
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8314200 |
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1200 |
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Zubkova, E.; An, P.; Kovalyuk, V.; Korneev, A.; Ferrari, S.; Pernice, W.; Goltsman, G. |
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Integrated Bragg waveguides as an efficient optical notch filter on silicon nitride platform |
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Conference Article |
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2017 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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917 |
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062042 |
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Si3N4, Bragg waveguides |
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We modeled and fabricated integrated optical Bragg waveguides on a silicon nitride (Si3N4) platform. These waveguides would serve as efficient notch-filters with the desired characteristics. Transmission spectra of the fabricated integrated notch filters have been measured and attenuation at the desired wavelength of 1550 nm down to -43 dB was observed. Performance of the filters has been studied depending on different parameters, such as pitch, filling factor, and height of teeth of the Bragg grating |
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RPLAB @ kovalyuk @ |
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1141 |
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Chuprina, I. N.; An, P. P.; Zubkova, E. G.; Kovalyuk, V. V.; Kalachev, A. A.; Gol'tsman, G. N. |
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Optimisation of spontaneous four-wave mixing in a ring microcavity |
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Conference Article |
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2017 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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47 |
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10 |
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887-891 |
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ring microcavity |
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Abstract. A theory of spontaneous four-wave mixing in a ring microcavity is developed. The rate of emission of biphotons for pulsed and monochromatic pumping with allowance for the disper- sion of group velocities is analytically calculated. In the first case, pulses in the form of an increasing exponential are considered, which are optimal for excitation of an individual resonator mode. The behaviour of the group velocity dispersion as a function of the width and height of the waveguide is studied for a specific case of a ring microcavity made of silicon nitride. The results of the numeri- cal calculation are in good agreement with the experimental data. The ring microcavity is made of two types of waveguides: com- pletely etched and half etched. It is found that the latter allow for better control over the parameters in the manufacturing process, making them more predictable. |
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RPLAB @ kovalyuk @ |
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1142 |
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Флоря, И. Н. |
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Ультрабыстрый однофотонный детектор для оптических применений |
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2009 |
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Науч. сессия МИФИ |
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Науч. сессия МИФИ |
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45-46 |
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SSPD |
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Представлен сверхпроводниковый однофотонный детектор (SSPD) на основе ультратонкой пленки NbN, обладающий рекордным быстродействием. Активный элемент выполнен в виде N сверхпроводящих полосок соединенных параллельно, покрывающих площадку размером 10 мкм х 10 мкм. Для SSPD с N=12 длительность импульса напряжения составляет 200 пс. Полученные результаты открывают путь к детекторам обладающими скоростью счета свыше 1 ГГц, что делает SSPDs весьма привлекательными во многих применениях, в частности для квантовой криптографии. SSPD хорошо согласуется с оптоволокном и легко может быть интегрирован в полностью готовую для работы приемную систему. |
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978-5-7262-1042-1 |
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УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
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