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Intermodal stimulated Raman scattering in hydrogen-filled hollow-core photonic crystal fiber

MPS-Authors
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Ziemienczuk,  M.
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Walser,  A. M.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Abdolvand,  A.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  P. St. J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Ziemienczuk, M., Walser, A. M., Abdolvand, A., & Russell, P. S. J. (2012). Intermodal stimulated Raman scattering in hydrogen-filled hollow-core photonic crystal fiber. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 29(7), 1563-1568.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-68BD-C
Abstract
Stimulated Raman scattering is investigated in a slightly multimode gas-filled hollow-core photonic crystal fiber. Although, second-order Stokes light appears in the fundamental mode below a certain threshold energy, it is observed to switch to a two-lobed higher order mode above this threshold. Conversion to the higher order mode is made possible by the creation of a two-lobed moving coherence wave in the gas that provides both phase-matching and a strong intermodal pump-Stokes overlap. A theoretical model is developed, based on this physical interpretation that agrees quantitatively with the experimental results. The results suggest new opportunities for all-fiber gas-based nonlinear processes requiring phase-matching, such as coherent anti-Stokes Raman scattering, as well as providing a means (for example) of efficiently converting light from a higher order pump mode to a fundamental Stokes mode. (C) 2012 Optical Society of America