A combination of orbital angular momentum (OAM) and spin angular momentum (SAM) degrees of freedom for a single photon leads to enhanced transmission rates and security in high dimensional quantum key distribution (QKD) systems. Therefore, the actual commercial QKD sources require accurate and fast generation of encoded states. This paper proposes a schemed and numerically verified integrated high-speed and low-loss electro-optical modulator for the manipulation of modes encoded in OAM-SAM states. The modulator is designed as an electrooptically active lithium niobate on insulator photonic wire configuration. The obtained results indicate the high purity (>92%) and low quantum bit error rate (∼8%) generation of encoded states for 4D-QKD with structured photons via low applied voltage values not more than 9 volts.
Generation of mutually unbiased bases for 4D-QKD with structured photons via LNOI photonic wire
Mousavi S. F.;
2018-01-01
Abstract
A combination of orbital angular momentum (OAM) and spin angular momentum (SAM) degrees of freedom for a single photon leads to enhanced transmission rates and security in high dimensional quantum key distribution (QKD) systems. Therefore, the actual commercial QKD sources require accurate and fast generation of encoded states. This paper proposes a schemed and numerically verified integrated high-speed and low-loss electro-optical modulator for the manipulation of modes encoded in OAM-SAM states. The modulator is designed as an electrooptically active lithium niobate on insulator photonic wire configuration. The obtained results indicate the high purity (>92%) and low quantum bit error rate (∼8%) generation of encoded states for 4D-QKD with structured photons via low applied voltage values not more than 9 volts.Pubblicazioni consigliate
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