Translator Disclaimer
Presentation + Paper
30 August 2017 PPLN-waveguide-based polarization entangled QKD simulator
Author Affiliations +
We have developed a comprehensive simulator to study the polarization entangled quantum key distribution (QKD) system, which takes various imperfections into account. We assume that a type-II SPDC source using a PPLN-based nonlinear optical waveguide is used to generate entangled photon pairs and implements the BB84 protocol, using two mutually unbiased basis with two orthogonal polarizations in each basis. The entangled photon pairs are then simulated to be transmitted to both parties; Alice and Bob, through the optical channel, imperfect optical elements and onto the imperfect detector. It is assumed that Eve has no control over the detectors, and can only gain information from the public channel and the intercept resend attack. The secure key rate (SKR) is calculated using an upper bound and by using actual code rates of LDPC codes implementable in FPGA hardware. After the verification of the simulation results, such as the pair generation rate and the number of error due to multiple pairs, for the ideal scenario, available in the literature, we then introduce various imperfections. Then, the results are compared to previously reported experimental results where a BBO nonlinear crystal is used, and the improvements in SKRs are determined for when a PPLN-waveguide is used instead.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John Gariano and Ivan B. Djordjevic "PPLN-waveguide-based polarization entangled QKD simulator", Proc. SPIE 10409, Quantum Communications and Quantum Imaging XV, 104090A (30 August 2017);


Quantum-key distribution with vector modes
Proceedings of SPIE (February 27 2017)
Current status of the DARPA quantum network
Proceedings of SPIE (May 25 2005)
Experimental E91 quantum key distribution
Proceedings of SPIE (February 19 2008)
Hyperentangled states and free-space quantum cryptography
Proceedings of SPIE (December 09 2002)
Introduction to optical quantum cryptography
Proceedings of SPIE (December 28 2007)

Back to Top