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arXiv · 1911.01228

Broadly tunable photon pair generation in a suspended-core fiber

Jonas Hammer·Maria V. Chekhova·Daniel R. Häupl·Riccardo Pennetta·Nicolas Y. Joly
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Abstract

Nowadays fiber biphoton sources are nearly as popular as crystal-based ones. They offer a single spatial mode and easy integrability into optical networks. However, fiber sources lack the broad tunability of crystals, which do not require a tunable pump. Here, we report a broadly tunable biphoton source based on a suspended core fiber. This is achieved by introducing pressurized gas into the fibers hollow channels, changing the step index. The mechanism circumvents the need for a tunable pump laser, making this a broadly tunable fiber biphoton source with a convenient tuning mechanism, comparable to crystals. We report a continuous shift of 0.30THz/bar of the sidebands, using up to 25bar of argon.

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Jonas Hammer, Maria V. Chekhova, Daniel R. Häupl, Riccardo Pennetta, Nicolas Y. Joly. 2019-11-04. Broadly tunable photon pair generation in a suspended-core fiber. https://doi.org/10.1103/physrevresearch.2.012079

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