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Journal Article

Generation of broadband circularly polarized supercontinuum light in twisted photonic crystal fibers

MPS-Authors
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Sopalla,  Rafal
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Wong,  Gordon
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Joly,  Nicolas
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg;

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Frosz,  Michael
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
Fibre Fabrication and Glass Studio, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;

Jiang,  Xin
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Ahmed,  Goran
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
Fibre Fabrication and Glass Studio, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  Philip
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Sopalla, R., Wong, G., Joly, N., Frosz, M., Jiang, X., Ahmed, G., et al. (2019). Generation of broadband circularly polarized supercontinuum light in twisted photonic crystal fibers. Optics Letters, 44(16), 3964-3967. doi:10.1364/OL.44.003964.


Cite as: https://hdl.handle.net/21.11116/0000-0004-794F-D
Abstract
We compare the properties of the broadband supercontinuum (SC) generated in twisted and untwisted solid-core photonic crystal fibers when pumped by circularly polarized
40 picosecond laser pulses at 1064 nm. In the helically twisted fiber, fabricated by spinning the preform during the draw, the SC is robustly circularly polarized across its entire
spectrum whereas, in the straight fiber, axial fluctuations in linear birefringence and polarization-dependent nonlinear effects cause the polarization state to vary randomly with the wavelength. Theoretical modelling confirms the experimental results. Helically twisted photonic crystal fibers permit the generation of pure circularly polarized SC light with excellent polarization stability against fluctuations in input power and environmental perturbations.