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Generation and Coherent Control of Pulsed Quantum Frequency Combs

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A Photonics-Assisted Binary/Quaternary Phase-Coded Microwave Signal Generator Applicable to Digital I/O Interfaces.

Jing Yin¹, Yan Zhao¹, Feng Yang^2,3

¹Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China.

|May 27, 2023

Summary

A novel photonics-assisted microwave signal generator offers reconfigurable carrier frequencies for binary/quaternary phase-coded signals. This system integrates with digital I/O interfaces, bypassing expensive equipment for broader applications.

Keywords:

microwave photonics phase-coded signal reconfigurable carrier frequency signal generation

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Area of Science:

Photonics
Microwave Engineering
Signal Processing

Background:

Traditional microwave signal generators are often complex and expensive.
Integration with digital interfaces requires specialized hardware.
Phase-coded signals are crucial for various communication systems.

Purpose of the Study:

To propose and experimentally verify a photonics-assisted microwave signal generator.
To achieve reconfigurable fundamental/doubling carrier frequencies.
To enable binary/quaternary phase-coded signal generation compatible with digital I/O interfaces.

Main Methods:

A cascade modulation scheme for reconfiguring carrier frequency and loading phase codes.
Control of radio frequency (RF) switch and modulator bias voltages for frequency switching.
Generation of binary/quaternary phase-coded signals using independent coding signals and FPGA IO interfaces.

Main Results:

Successful experimental verification of the proposed photonics-assisted signal generator.
Demonstration of reconfigurable fundamental and doubling carrier frequencies.
Generation of binary and quaternary phase-coded signals applicable to digital I/O interfaces.

Conclusions:

The proposed scheme provides a cost-effective and flexible solution for microwave signal generation.
The system's compatibility with FPGA IO interfaces simplifies integration and reduces system costs.
Further analysis includes performance evaluation and the impact of non-ideal conditions on phase shifting.