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

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arxiv 2108.08428 v1 pith:CIO5XAJZ submitted 2021-08-19 quant-ph

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

classification quant-ph
keywords dynamicpolarizationcontinuous-variablecontrollerdistributionintegratedphotonicsquantum
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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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