Triangular spectral phase tailoring for the generation of high-quality picosecond pulse trains

TL;DR

This paper introduces a novel electro-optic method combining sinusoidal phase modulation and triangular spectral phase processing to generate high-quality, high-repetition-rate picosecond pulse trains without a cavity, validated through experiments.

Contribution

It presents a new cavity-free technique for generating high-repetition-rate picosecond pulses using spectral phase tailoring, advancing optical pulse train generation methods.

Findings

Validates the method at 10 GHz to 40 GHz

Produces background-free, nearly Gaussian Fourier-transform limited pulses

Demonstrates both theoretical and experimental feasibility

Abstract

We theoretically and experimentally demonstrate a new electro-optic linear approach to generate high repetition-rate picosecond pulse trains. This simple cavity-free method is based on a temporal sinusoidal phase modulation combined with a triangular spectral phase processing. Experimental results validate the concept at repetition rates ranging from 10 GHz up to 40 GHz with the generation of background-free pulse trains made of nearly Gaussian Fourier-transform limited pulses.