Phase modulation polarization encoding module applied to one-to-many QKD network based on wavelength division multiplexing
نویسندگان
چکیده
The quantum key distribution (QKD) network is a promising solution for secure communications. In this paper, we proposed polarization-independent phase-modulated polarization encoding module, and it can be combined with dense wavelength division multiplexer (DWDM) to achieve multi-user QKD. We experimentally test the module repetition rate of 62.5 MHz, its average bit error (QBER) as low 0.4%. Finally, implement principle verification simultaneous QKD 1 2 users in 100 min, QBER two under transmission distance km 5 kept below 0.8%. Due use encoding, also realize scalable architecture free-space systems future.
منابع مشابه
Quantum Metropolitan Optical Network based on Wavelength Division Multiplexing
Quantum Key Distribution (QKD) is maturing quickly. However, the current approaches to its application in optical networks make it an expensive technology. QKD networks deployed to date are designed as a collection of point-to-point, dedicated QKD links where non-neighboring nodes communicate using the trusted repeater paradigm. We propose a novel optical network model in which QKD systems shar...
متن کاملQuadrature Amplitude Modulation All Optical Orthogonal Frequency Division Multiplexing-dense Wavelength Division Multiplexing-optical Wireless Communication System under Different Weather Conditions
This paper proposes an analytical model for evaluating the performance of dense wavelength division multiplexing (DWDM) for all optical orthogonal frequency division multiplexing (AO-OFDM) optical wireless channel. The investigated performance for proposed system is evaluated for the parameters bit error rate (BER) and Q factor .The constellation diagrams, and bit error rate (BER) of the recei...
متن کاملPhotonic Crystal Devices for Wavelength-Division-Multiplexing and Optical Modulation
This paper reviews photonic crystal (PC) based demultiplexers, and briefly reports our latest experimental achievement in ultra-compact, power-efficient silicon photonic crystal waveguide (PCW) modulators. We review the modeling techniques for photonic crystal superprism devices, which utilize anomalous refraction on a photonic crystal surface for wavelength demultiplexing. The finite differenc...
متن کاملEvaluation of Wavelength Division Multiplexing System using Different Modulation Formats
In this paper, we have demonstrated the eight channel WDM system using NRZ, RZ and duobinary modulation formats. The WDM system has been analyzed by varying the input power from 0 to 20dBm for different modulation formats in order to find the modulation format for a high data rate optical transmission system. Furthermore, it is found that duobinary modulation is much better than Return-to-Zero ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chinese Optics Letters
سال: 2022
ISSN: ['1671-7694']
DOI: https://doi.org/10.3788/col202220.122701