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Updated: Feb 9, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Ultra-narrow pulse generator with precision-adjustable pulse width.

Zaiming Fu¹, Hanglin Liu¹

¹School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.

The Review of Scientific Instruments

|June 6, 2018

Summary

This summary is machine-generated.

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A novel method generates ultra-narrow pulses by controlling pulse edge delays. This programmable pulse generator achieves high precision and optimizes pulse width resolution, overcoming device limitations.

Area of Science:

Electrical Engineering
Signal Processing
Instrumentation

Background:

Generating ultra-narrow pulses is critical for high-speed electronic systems.
Existing methods face limitations due to device propagation delays, affecting accuracy and resolution.
Programmable pulse generation with high precision is a persistent challenge.

Purpose of the Study:

To propose a novel approach for ultra-narrow pulse generation.
To develop a programmable pulse generator with enhanced resolution and accuracy.
To overcome the limitations of device propagation delay in pulse generation.

Main Methods:

Pulse generation based on the decomposition and synthesis of pulse edges.
Controlling the relative delay between synthesized pulse edges to achieve ultra-narrow pulses.

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Last Updated: Feb 9, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

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Published on: June 8, 2018

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Utilizing Field Programmable Gate Array (FPGA) digital synthesis technology for programmability.

Employing radio frequency (RF) amplifiers and bias tees for precise amplitude control.

Main Results:

Successfully generated ultra-narrow pulses with a minimum width of 100 picoseconds (ps).
Developed a two-channel programmable pulse generator with a frequency range of 15 MHz to 1.5 GHz.
Achieved high precision with pulse width and channel delay resolution of 1 ps, and amplitude resolution of 10 mVpp.
Demonstrated the ability to break through device propagation delay limitations.

Conclusions:

The proposed pulse edge decomposition and synthesis method enables ultra-narrow pulse generation.
FPGA implementation provides a programmable and high-precision pulse generator.
The approach significantly optimizes pulse width resolution and accuracy, surpassing conventional limitations.