Pulse shaping with birefringent crystals: a tool for quantum metrology

TL;DR

This paper introduces a pulse shaping method using birefringent crystals and polarization spectral interferometry, enabling precise quantum-limited time metrology over a broad spectral range.

Contribution

It presents a novel pulse shaping technique with a detailed measurement of the transfer function, suitable for quantum-limited time metrology.

Findings

Achieved time differentiation over 100 THz spectral width.

Measured transfer function with over 99.8% overlap.

Demonstrated pulse shaping for quantum metrology applications.

Abstract

A method for time differentiation based on a Babinet-Soleil-Bravais compensator is introduced. The complex transfer function of the device is measured using polarization spectral interferometry. Time differentiation of both the pulse field and pulse envelope are demonstrated over a spectral width of about 100 THz with a measured overlap with the objective mode greater than 99.8%. This pulse shaping technique is shown to be perfectly suited to time metrology at the quantum limit.