| Author: | Zhang, Xinjie |
| Title: | FPGA circuit design and experiment for the control of high-speed quantum devices |
| Advisors: | Liu, Ai-qun (EEE) |
| Degree: | M.Sc. |
| Year: | 2024 |
| Department: | Department of Electrical and Electronic Engineering |
| Pages: | iii, 39 pages : color illustrations |
| Language: | English |
| Abstract: | Quantum key distribution (QKD) allows two distant parties to distribute keys through an untrusted channel. Quantum key distribution mainly uses the quantum no-cloning theory to encode traditional information into quantum information or qubits to prepare quantum states and then transmit it through a quantum channel. The receiver detects the quantum state and restores the corresponding quantum information. In this process, the implementation of the coding system, which loads traditional information into the quantum state, is crucial because the supported QKD protocols and rates are different depending on the performance of the coding system. Designing and developing a high-performance and highly compatible QKD coding system is a crucial link. This work designs and produces a QKD coding system based on FPGA. FPGA is widely used in high-speed signal processing. Due to this feature, many QKD-related works have used FPGA. Here, we implement a high-speed DC-coupled driver circuit capable of generating arbitrary Non-Return-to-Zero (NRZ) waveforms. This design is also adaptable to various electro-optic modulators commonly used in QKD systems, enhancing flexibility and applicability across multiple QKD systems. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 8310.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 2.13 MB | Adobe PDF | View/Open |
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