Analysis of interchannel crosstalk in multimode parallel optical waveguides using the beam propagation method

Takuya Kudo, Takaaki Ishigure

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8 Citations (Scopus)


We theoretically analyze the origin of inter-channel crosstalk in densely aligned multimode parallel optical waveguides for on-board interconnects using the Beam Propagation Method. In this paper, we demonstrate that the inter-channel crosstalk due to mode coupling is very low in graded-index (GI) circular-core waveguides because the propagation constants of the propagating modes are discrete. Additionally, it is also found that the waveguides with GI-type circular cores is sensitive to the optical confinement in the cladding: low-power cladding modes largely decrease the mode conversion.

Original languageEnglish
Pages (from-to)9675-9686
Number of pages12
JournalOptics Express
Issue number8
Publication statusPublished - 2014 Apr 21


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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