Waveguide-based single-shot temporal cross-correlator

TL;DR

This paper introduces a new method for single-shot optical cross-correlation using four-wave mixing in nanowaveguides, leveraging polarization mode dispersion to measure the spectrum of the generated idler wave.

Contribution

The paper presents a novel waveguide-based technique for single-shot optical cross-correlation utilizing four-wave mixing and polarization mode dispersion.

Findings

Successful demonstration of single-shot cross-correlation in nanowaveguides

Effective measurement of the spectrum of the idler wave

Potential for high-speed optical signal processing

Abstract

We describe a novel technique for performing a single-shot optical cross-correlation in nanowaveguides. Our scheme is based on four-wave mixing between two orthogonally polarized input signals propagating with different velocities due to polarization mode dispersion. The cross-correlation is determined by measuring the spectrum of the idler wave generated by the four-wave mixing process.