Phase locking of two independent degenerate coherent anti-Stokes Raman scattering processes

TL;DR

This paper introduces a novel optical scheme using a modified Mach-Zehnder interferometer to achieve phase locking between two independent degenerate CARS processes, enabling precise phase control and measurement.

Contribution

The work presents a new phase-locking scheme for independent CARS processes using phase-transport interferometry, which was not previously demonstrated.

Findings

Successful phase locking of two independent degenerate CARS processes.

Ability to measure and control phase differences explicitly.

Potential applications in advanced spectroscopy and quantum optics.

Abstract

We propose an elegant scheme towards phase locking of two independent degenerate coherent anti-Stokes Raman scattering (CARS) processes. The optical implementation involves a modified Mach-Zehnder interferometer that is utilized to transfer phase coherence from three totally uncorrelated laser beams into two degenerate CARS beams which are independently produced in two distinct Raman active samples. Such a phase-transport interferometer allows for explicit measurement and control of phase differences between the two phase-locked degenerate CARS processes, hence may lead to applications in other pertinent research fields.