Thermo-optical properties of silicon nitride Mach-Zehnder interferometer for the on-chip quantum random number generator

A. Prokhodtsov; V. Kovalyuk; P. An; A. Golikov; Y. Konyshev; R. Shakhovoy; V. Sharoglazova; A. Udaltsov; Y. Kurochkin; G. Goltsman

doi:10.1088/1742-6596/2086/1/012164

Thermo-optical properties of silicon nitride Mach-Zehnder interferometer for the on-chip quantum random number generator

A. Prokhodtsov
, V. Kovalyuk
, P. An
, A. Golikov
, Y. Konyshev
, R. Shakhovoy
, V. Sharoglazova
, A. Udaltsov
, Y. Kurochkin
, G. Goltsman

Research output: Contribution to journal › Conference article › Academic › peer-review

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Abstract

Here we study the thermo-optical properties of an on-chip silicon nitride Mach-Zehnder interferometer (MZI). The spectral shift of the MZI is associated with a change in the chip temperature. This can be explained by a change in the splitting ratio of the directional couplers, as well as a significant change in phase difference between waveguide arms. We experimentally found a phase shift of 2π when heated by 1.67 °C and changes in resonant wavelength at different temperatures (dλ/dT) equal 12.0 pm/°C, theoretically obtained a formula for an arbitrary splitting ratio of the directional couplers in an MZI, and determined the temperature stability required to the device operation inside a quantum cryptography system.

Original language	English
Article number	012164
Journal	Journal of physics: Conference series
Volume	2086
DOIs	https://doi.org/10.1088/1742-6596/2086/1/012164
Publication status	Published - 2021
Externally published	Yes
Event	8th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, OPEN 2021 - Saint Petersburg, Russian Federation Duration: 25 May 2021 → 28 May 2021 Conference number: 8

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10.1088/1742-6596/2086/1/012164Licence: CC BY

Prokhodtsov_2021_J._Phys.__Conf._Ser._2086_012164Final published version, 1.28 MBLicence: CC BY

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Prokhodtsov, A., Kovalyuk, V., An, P., Golikov, A., Konyshev, Y., Shakhovoy, R., Sharoglazova, V., Udaltsov, A., Kurochkin, Y., & Goltsman, G. (2021). Thermo-optical properties of silicon nitride Mach-Zehnder interferometer for the on-chip quantum random number generator. Journal of physics: Conference series, 2086, Article 012164. https://doi.org/10.1088/1742-6596/2086/1/012164

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title = "Thermo-optical properties of silicon nitride Mach-Zehnder interferometer for the on-chip quantum random number generator",

abstract = "Here we study the thermo-optical properties of an on-chip silicon nitride Mach-Zehnder interferometer (MZI). The spectral shift of the MZI is associated with a change in the chip temperature. This can be explained by a change in the splitting ratio of the directional couplers, as well as a significant change in phase difference between waveguide arms. We experimentally found a phase shift of 2π when heated by 1.67 °C and changes in resonant wavelength at different temperatures (dλ/dT) equal 12.0 pm/°C, theoretically obtained a formula for an arbitrary splitting ratio of the directional couplers in an MZI, and determined the temperature stability required to the device operation inside a quantum cryptography system.",

author = "A. Prokhodtsov and V. Kovalyuk and P. An and A. Golikov and Y. Konyshev and R. Shakhovoy and V. Sharoglazova and A. Udaltsov and Y. Kurochkin and G. Goltsman",

year = "2021",

doi = "10.1088/1742-6596/2086/1/012164",

language = "English",

volume = "2086",

journal = "Journal of physics: Conference series",

issn = "1742-6588",

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T1 - Thermo-optical properties of silicon nitride Mach-Zehnder interferometer for the on-chip quantum random number generator

AU - Prokhodtsov, A.

AU - Kovalyuk, V.

AU - An, P.

AU - Golikov, A.

AU - Konyshev, Y.

AU - Shakhovoy, R.

AU - Sharoglazova, V.

AU - Udaltsov, A.

AU - Kurochkin, Y.

AU - Goltsman, G.

N1 - Conference code: 8

PY - 2021

Y1 - 2021

N2 - Here we study the thermo-optical properties of an on-chip silicon nitride Mach-Zehnder interferometer (MZI). The spectral shift of the MZI is associated with a change in the chip temperature. This can be explained by a change in the splitting ratio of the directional couplers, as well as a significant change in phase difference between waveguide arms. We experimentally found a phase shift of 2π when heated by 1.67 °C and changes in resonant wavelength at different temperatures (dλ/dT) equal 12.0 pm/°C, theoretically obtained a formula for an arbitrary splitting ratio of the directional couplers in an MZI, and determined the temperature stability required to the device operation inside a quantum cryptography system.

AB - Here we study the thermo-optical properties of an on-chip silicon nitride Mach-Zehnder interferometer (MZI). The spectral shift of the MZI is associated with a change in the chip temperature. This can be explained by a change in the splitting ratio of the directional couplers, as well as a significant change in phase difference between waveguide arms. We experimentally found a phase shift of 2π when heated by 1.67 °C and changes in resonant wavelength at different temperatures (dλ/dT) equal 12.0 pm/°C, theoretically obtained a formula for an arbitrary splitting ratio of the directional couplers in an MZI, and determined the temperature stability required to the device operation inside a quantum cryptography system.

UR - https://www.scopus.com/pages/publications/85122380008

U2 - 10.1088/1742-6596/2086/1/012164

DO - 10.1088/1742-6596/2086/1/012164

M3 - Conference article

SN - 1742-6588

VL - 2086

JO - Journal of physics: Conference series

JF - Journal of physics: Conference series

M1 - 012164

T2 - 8th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, OPEN 2021

Y2 - 25 May 2021 through 28 May 2021

ER -

Thermo-optical properties of silicon nitride Mach-Zehnder interferometer for the on-chip quantum random number generator

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