Continuous Variable QKD with Time Division Quadrature Homodyne Detection 


Vol. 46,  No. 5, pp. 900-905, May  2021
10.7840/kics.2021.46.5.900


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  Abstract

In the continuous-variable quantum key distribution (CVQKD) system, quadrature homodyne detection (QHD) can increase the secret key rate compared to the conventional homodyne detection (HD). Our new scheme of time-division quadrature homodyne detection (TDQHD) enables simultaneous detection of two quadratures with only one single homodyne interferometer in a time-division manner, unlike conventional QHD. In addition, in implementing the actual system, the need for a random phase modulation used for selection of the detection quadrature in the HD is eliminated, and hence practically the TDQHD can be implemented polarization independent, eliminating the impairment caused by polarization drifts in the fiber transmission system.

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  Cite this article

[IEEE Style]

J. Oh, K. Lim, J. K. Rhee, "Continuous Variable QKD with Time Division Quadrature Homodyne Detection," The Journal of Korean Institute of Communications and Information Sciences, vol. 46, no. 5, pp. 900-905, 2021. DOI: 10.7840/kics.2021.46.5.900.

[ACM Style]

Junsang Oh, Kyongchun Lim, and June-Koo Kevin Rhee. 2021. Continuous Variable QKD with Time Division Quadrature Homodyne Detection. The Journal of Korean Institute of Communications and Information Sciences, 46, 5, (2021), 900-905. DOI: 10.7840/kics.2021.46.5.900.

[KICS Style]

Junsang Oh, Kyongchun Lim, June-Koo Kevin Rhee, "Continuous Variable QKD with Time Division Quadrature Homodyne Detection," The Journal of Korean Institute of Communications and Information Sciences, vol. 46, no. 5, pp. 900-905, 5. 2021. (https://doi.org/10.7840/kics.2021.46.5.900)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880