Intermodal Čerenkov radiation in a higher-order-mode fiber

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Without internal affiliation

  • Author: Cheng, Ji

    Cornell University, United States

  • Author: Pedersen, Martin Erland Vestergaard

    Unknown

  • Author: Charan, Kriti

    Cornell University, United States

  • Author: Wang, Ke

    Cornell University, United States

  • Author: Xu, Chris

    Cornell University, United States

  • Author: Grüner-Nielsen, Lars

    OFS Fitel

  • Author: Jakobsen, Dan

    OFS Fitel

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We demonstrate an intermodal Čerenkov radiation effect in a higher-order-mode (HOM) fiber with a mode crossing (i.e., two guided modes having the same propagation constant at the same wavelength). A frequency-shifted soliton in the vicinity of the mode-crossing wavelength emits a phase-matched dispersive wave in a different propagation mode. We develop a theoretical explanation for this nonlinear optical effect and demonstrate that the mode crossing in HOM fibers can be utilized to achieve simultaneous wavelength and mode conversion; the strength of this intermodal nonlinear interaction can be tuned by controlled fiber bending.
Original languageEnglish
JournalOptics Letters
Publication date2012
Volume37
Issue21
Pages4410-4412
ISSN0146-9592
StatePublished
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