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arXiv · 1905.02807

Optimal pulse propagation in an inhomogeneously gas-filled hollow-core fiber

Roman Sulzbach·Thorsten Peters·Reinhold Walser
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Abstract

We study optical pulse propagation through a hollow-core fiber filled with a radially inhomogeneous cloud of cold atoms. A co-propagating control field establishes electromagnetically induced transparency. In analogy to a graded index fiber, the pulse experiences micro-lensing and the transmission spectrum becomes distorted. Based on a two-layer model of the complex index of refraction, we can analytically understand the cause of the aberration, which is corroborated by numerical simulations for a radial Gaussian-shaped function. With these insights, we show that the spectral distortions can be rectified by choosing an optimal detuning from one-photon resonance.

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Roman Sulzbach, Thorsten Peters, Reinhold Walser. 2019-05-07. Optimal pulse propagation in an inhomogeneously gas-filled hollow-core fiber. https://doi.org/10.1103/physreva.100.013847

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