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

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.

References in corpus (4)

• Long-Distance Continuous-Variable Quantum Key Distribution over 202.81 km of Fiber
• Experimental quantum key distribution beyond the repeaterless secret key capacity
• High-speed measurement-device-independent quantum key distribution with integrated silicon photonics
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Cited by in corpus (4)

• Continuous-variable quantum key distribution system: past, present, and future
• Silicon photonics-integrated time-domain balanced homodyne detector in continuous-variable quantum key distribution
• Continuous-variable quantum key distribution over 50.4 km fiber using integrated silicon photonic transmitter and receiver
• Calibration of cascaded phase shifters using pairwise scan method in silicon photonics integrated chip