3 years ago

A broadband fiber-optic nonlinear interferometer.

Raphael C. Pooser, Nicholas A. Peters, Joseph M. Lukens

We describe an all-fiber nonlinear interferometer based on four-wave mixing in highly nonlinear fiber. Our configuration realizes phase-sensitive interference with 97% peak visibility and >90% visibility over a broad 554 GHz optical band. By comparing the output noise power to the shot-noise level, we confirm noise cancellation at dark interference fringes, as required for quantum-enhanced sensitivity. Our device extends nonlinear interferometry to the important platform of highly nonlinear optical fiber, and could find application in a variety of fiber-based sensors.

Publisher URL: http://arxiv.org/abs/1808.05041

DOI: arXiv:1808.05041v1

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