Records |
Author |
Elezov, M. S.; Scherbatenko, M. L.; Sych, D. V.; Goltsman, G. N. |
Title |
Active and passive phase stabilization for the all-fiber Michelson interferometer |
Type |
Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051014 (1 to 5) |
Keywords |
Michelson interferometer, phase stabilization |
Abstract |
We put forward two methods for phase stabilization in the all-fiber Michelson interferometer. To perform passive phase stabilization, we use a heat bath for all fibers and electro-optical components, and put the interferometer in a hermetic case. To perform active phase stabilization, we monitor output power of the interferometer and develop an electronic feedback control. The phase stabilization methods enable stable interference pattern for several minutes, and can be helpful for the development of the optimal quantum receiver for coherent signals. |
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1742-6588 |
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1299 |
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Author |
Golikov, A.; Kovalyuk, V.; An, P.; Zubkova, E.; Ferrari, S.; Pernice, W.; Korneev, A.; Goltsman, G. |
Title |
Silicon nitride nanophotonic circuit for on-chip spontaneous four-wave mixing |
Type |
Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051051 |
Keywords |
O-ring resonator |
Abstract |
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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Author |
Smirnov, E.; Golikov, A.; Zolotov, P.; Kovalyuk, V.; Lobino, M.; Voronov, B.; Korneev, A.; Goltsman, G. |
Title |
Superconducting nanowire single-photon detector on lithium niobate |
Type |
Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051025 |
Keywords |
SSPD, SNSPD, lithium niobate, LN |
Abstract |
We demonstrate superconducting niobium nitride nanowires folded on top of lithium niobate substrate. We report of 6% system detection efficiency at 20 s−1 dark count rate at telecommunication wavelength (1550 nm). Our results shown great potential for the use of NbN nanowires in the field of linear and nonlinear integrated quantum photonics. |
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1742-6588 |
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1194 |
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Zubkova, E.; An, P.; Kovalyuk, V.; Korneev, A.; Ferrari, S.; Pernice, W.; Goltsman, G. |
Title |
Optimization of contra-directional coupler based on silicon nitride Bragg rib waveguide |
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Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051048 |
Keywords |
Bragg waveguide, Si3N4 |
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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Author |
Prokhodtsov, A.; An, P.; Kovalyuk, V.; Zubkova, E.; Golikov, A.; Korneev, A.; Ferrari, S.; Pernice, W.; Goltsman, G. |
Title |
Optimization of on-chip photonic delay lines for telecom wavelengths |
Type |
Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051052 |
Keywords |
optical delay lines |
Abstract |
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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Kovalyuk, V.; Kahl, O.; Ferrari, S.; Vetter, A.; Lewes-Malandrakis, G.; Nebel, C.; Korneev, A.; Goltsman, G.; Pernice, W. |
Title |
On-chip single-photon spectrometer for visible and infrared wavelength range |
Type |
Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051045 |
Keywords |
single-photon spectrometer |
Abstract |
Here we show our latest progress in the field of a single-photon spectrometer for the visible and infrared wavelengths ranges implementation. We consider three different on-chip approaches: a coherent spectrometer with a low power of the heterodyne, a coherent spectrometer with a high power of the heterodyne, and an eight-channel single-photon spectrometer for direct detection. Along with high efficiency, spectrometers show high detection efficiency and temporal resolution through the use of waveguide integrated superconducting nanowire single-photon detectors. |
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1742-6588 |
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1197 |
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Korneev, A.; Kovalyuk, V.; An, P.; Golikov, A.; Zubkova, E.; Ferrari, S.; Kahl, O.; Pernice, W.; Goltsman, G.; Naumov, A. V.; Gladush, M. G.; Karimullin, K. R. |
Title |
Superconducting single-photon detector for integrated waveguide spectrometer |
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Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
Volume |
190 |
Issue |
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Pages |
04009 |
Keywords |
SSPD, SNSPD, Si3N4 waveguides, waveguide spectrometer |
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We present our recent achievements in the development of an on-chip spectrometer consisting of arrayed waveguide grating made of Si3N4 waveguides and NbN superconducting single-photon detector. |
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2100-014X |
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1199 |
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Zolotov, P. I.; Divochiy, A. V.; Vakhtomin, Y. B.; Lubenchenko, A. V.; Morozov, P. V.; Shurkaeva, I. V.; Smirnov, K. V. |
Title |
Influence of sputtering parameters on the main characteristics of ultra-thin vanadium nitride films |
Type |
Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051030 |
Keywords |
SSPD, SNSPD, VN |
Abstract |
We researched the relation between deposition and ultra-thin VN films parameters. To conduct the experimental study we varied substrate temperature, Ar and N2 partial pressures and deposition rate. The study allowed us to obtain the films with close to the bulk values transition temperatures and implement such samples in order to fabricate superconducting single-photon detectors. |
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1228 |
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Author |
Romanov, N. R.; Zolotov, P. I.; Vakhtomin, Y. B.; Divochiy, A. V.; Smirnov, K. V. |
Title |
Electron diffusivity measurements of VN superconducting single-photon detectors |
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Conference Article |
Year ![sorted by Year field, ascending order (up)](img/sort_asc.gif) |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051032 |
Keywords |
SSPD, SNSPD, VN |
Abstract |
The research of ultrathin vanadium nitride (VN) films as a promising candidate for superconducting single-photon detectors (SSPD) is presented. The electron diffusivity measurements are performed for such devices. Devices that were fabricated out from 9.9 nm films had diffusivity coefficient of 0.41 cm2/s and from 5.4 nm – 0.54 cm2/s. Obtained values are similar to other typical SSPD materials. The diffusivity that increases along with decreasing of the film thickness is expected to allow fabrication of the devices with improved characteristics. Fabricated VN SSPDs showed prominent single-photon response in the range 0.9-1.55 µm. |
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1229 |
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Author |
Zolotov, P.; Divochiy, A.; Vakhtomin, Y.; Seleznev, V.; Morozov, P.; Smirnov, K. |
Title |
Superconducting single-photon detectors made of ultra-thin VN films |
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Conference Article |
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2018 |
Publication |
KnE Energy |
Abbreviated Journal |
KnE Energy |
Volume |
3 |
Issue |
3 |
Pages |
83-89 |
Keywords |
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Abstract |
We optimized technology of thin VN films deposition in order to study VN-based superconducting single-photon detectors. Investigation of the main VN film parameters showed that this material has lower resistivity compared to commonly used NbN. Fabricated from obtained films devices showed 100% intrinsic detection efficiency at 900 nm, at the temperature of 1.7 K starting with the bias current of 0.7·I |
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1230 |
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