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arXiv · 2108.08428

Silicon photonics integrated dynamic polarization controller for continuous-variable quantum key distribution

Xuyang Wang·Yanxiang Jia·Xubo Guo·Jianqiang Liu·Shaofeng Wang·Wenyuan Liu·Fangyuan Sun·Jun Zou·Yongmin Li
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Abstract

We designed and demonstrated experimentally a silicon photonics integrated dynamic polarization controller which is a crucial component of a continuous-variable quantum key distribution system. By using a variable step simulated annealing approach, we achieve a dynamic polarization extinction ratio greater than 25 dB. The dynamic polarization controller can be utilized in silicon photonics integrated continuous-variable quantum key distribution system to minimize the size and decrease the cost further.

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Xuyang Wang, Yanxiang Jia, Xubo Guo, Jianqiang Liu, Shaofeng Wang, Wenyuan Liu, Fangyuan Sun, Jun Zou, Yongmin Li. 2021-08-19. Silicon photonics integrated dynamic polarization controller for continuous-variable quantum key distribution. https://doi.org/10.3788/col202220.041301

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