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arXiv · 1808.05041

A broadband fiber-optic nonlinear interferometer

Joseph M. Lukens·Raphael C. Pooser·Nicholas A. Peters
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Abstract

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.

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Joseph M. Lukens, Raphael C. Pooser, Nicholas A. Peters. 2018-08-15. A broadband fiber-optic nonlinear interferometer. https://doi.org/10.1063/1.5048198

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