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Emergence of Geometrical Optical Nonlinearities in Photonic Crystal Fiber Nanowires

MPG-Autoren
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Biancalana,  Fabio
Biancalana Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Tran,  Truong X.
Biancalana Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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

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

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

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Zitation

Biancalana, F., Tran, T. X., Stark, S., Schmidt, M. A., & Russell, P. S. J. (2010). Emergence of Geometrical Optical Nonlinearities in Photonic Crystal Fiber Nanowires. PHYSICAL REVIEW LETTERS, 105(9): 093904. doi:10.1103/PhysRevLett.105.093904.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002D-6AC1-1
Zusammenfassung
We demonstrate analytically and numerically that a subwavelength-core dielectric photonic nanowire embedded in a properly designed photonic crystal fiber cladding shows evidence of a previously unknown kind of nonlinearity (the magnitude of which is strongly dependent on the waveguide parameters) which acts on solitons so as to considerably reduce their Raman self-frequency shift. An explanation of the phenomenon in terms of indirect pulse negative chirping and broadening is given by using the moment method. Our conclusions are supported by detailed numerical simulations.