Electric Field Distribution in a Grating of a Folded Arrayed-Waveguide Multiplexer

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Abstract

We present direct measurements of the electric field distribution at the reflecting surface folding a grating of an arrayed-waveguide multiplexer. The field distribution obtained using different input channels of a device can be described by a single-Gaussian function. Grating and coupler-slab waveguide mode-field radii were determined directly. The field profile was used to model the transmission spectrum of the device. Excellent agreement was found between the measured and calculated spectra.

Original languageEnglish
Pages (from-to)488-490
Number of pages3
JournalIEEE Photonics Technology Letters
Volume16
Issue number2
DOIs
StatePublished - Feb 2004

Keywords

  • Arrayed-waveguide grating (AWG)
  • Characterization
  • Multiplexers
  • Optics
  • Semiconductor lasers
  • Waveguides

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