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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 21 — Nov. 1, 2012
  • pp: 4410–4412

Intermodal Čerenkov radiation in a higher-order-mode fiber

Ji Cheng, Martin E. V. Pedersen, Kriti Charan, Ke Wang, Chris Xu, Lars Grüner-Nielsen, and Dan Jakobsen  »View Author Affiliations

Optics Letters, Vol. 37, Issue 21, pp. 4410-4412 (2012)

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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.

© 2012 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4370) Nonlinear optics : Nonlinear optics, fibers

ToC Category:
Nonlinear Optics

Original Manuscript: August 10, 2012
Manuscript Accepted: September 11, 2012
Published: October 19, 2012

Ji Cheng, Martin E. V. Pedersen, Kriti Charan, Ke Wang, Chris Xu, Lars Grüner-Nielsen, and Dan Jakobsen, "Intermodal Čerenkov radiation in a higher-order-mode fiber," Opt. Lett. 37, 4410-4412 (2012)

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