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Zubkova, E.; An, P.; Kovalyuk, V.; Korneev, A.; Ferrari, S.; Pernice, W.; Goltsman, G. |
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Title |
Optimization of contra-directional coupler based on silicon nitride Bragg rib waveguide |
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Conference Article |
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Year |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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Volume |
1124 |
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Pages |
051048 |
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Keywords |
Bragg waveguide, Si3N4 |
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Abstract |
We report on the development and fabrication of a contra-directional coupler based on the Bragg waveguide on Si3N4 platform. Transmitted and reflected by the contra-directional coupler spectra were measured. The reflected spectra exactly matches the one notched by the main channel of the coupler. Losses are about 3dB, coupling to the directing branch of the coupler is practically lossless. FWHM of the transmitted (reflected) spectra is 3.46 nm. |
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1742-6588 |
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1195 |
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Golikov, A.; Kovalyuk, V.; An, P.; Zubkova, E.; Ferrari, S.; Pernice, W.; Korneev, A.; Goltsman, G. |
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Title |
Silicon nitride nanophotonic circuit for on-chip spontaneous four-wave mixing |
Type |
Conference Article |
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Year |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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1124 |
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Pages |
051051 |
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Keywords |
O-ring resonator |
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Here we present an integrated nanophotonic circuit for on-chip spontaneous four-wave mixing. The fabricated device includes an O-ring resonator, a Bragg noch-filter as well as a nine-channel arrayed waveguide gratings (AWG) operated in the C-band wavelength range (1550 nm). The measured optical losses of the device (-6.8 dB) as well as a high Q-factor (> 1.2×105) shows a good potential for realizing the spontaneous four-wave mixing on the silicon nitride chip. |
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1742-6588 |
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1193 |
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Prokhodtsov, A.; An, P.; Kovalyuk, V.; Zubkova, E.; Golikov, A.; Korneev, A.; Ferrari, S.; Pernice, W.; Goltsman, G. |
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Title |
Optimization of on-chip photonic delay lines for telecom wavelengths |
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Conference Article |
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Year |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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1124 |
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Pages |
051052 |
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Keywords |
optical delay lines |
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In this work, we experimentally studied optical delay lines on silicon nitride platform for telecomm wavelength (1550 nm). We modeled the group delay time and fabricated spiral optical delay lines with different waveguide widths and radii as well as measured their transmission. For the half etched rib waveguides we achieved the losses in the range of 3 dB/cm. |
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1742-6588 |
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1196 |
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Manova, N. N.; Smirnov, E. O.; Korneeva, Yu. P.; Korneev, A. A.; Goltsman, G. N. |
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Title |
Superconducting photon counter for nanophotonics applications |
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Conference Article |
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2019 |
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J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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1410 |
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Pages |
012147 (1 to 5) |
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Keywords |
SSPD, SNSPD |
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We develop large area superconducting single-photon detector SSPD with a micron-wide strip suitable for free-space coupling or packaging with multi-mode optical fibres. The detector sensitive area is 20 μm in diameter. In near infrared (1330 nm wavelength) our SSPD exhibits above 30% detection efficiency with low dark counts and 45 ps timing jitter. |
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1742-6588 |
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1271 |
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Polyakova, M. I.; Florya, I. N.; Semenov, A. V.; Korneev, A. A.; Goltsman, G. N. |
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Title |
Extracting hot-spot correlation length from SNSPD tomography data |
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Conference Article |
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2019 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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1410 |
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012166 (1 to 4) |
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SSPD, SNSPD, quantum detector tomography, QDT |
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We present data of quantum detector tomography for the samples specifically optimized for this problem. Using this method, we take results of hot-spot correlation length of 17 ± 2 nm. |
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1742-6588 |
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1273 |
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