Technique of applying the prism-coupler method for accurate measurement of the effective indices of channel waveguides

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Original languageEnglish
Article number34601
Journal / PublicationOptical Engineering
Volume47
Issue number3
Publication statusPublished - 2008

Abstract

We propose a technique of applying the prism-coupler method for accurate measurement of the effective indices of channel waveguides, which can have step- or graded-index profiles. The technique involves coupling light from a prism into an array of waveguides, varying the angle between the prism axis and the array axis, and curve fitting of the measurement data. We demonstrate the technique with arrays of polymer waveguides and ion-exchanged glass waveguides. © 2008 Society of Photo-Optical Instrumentation Engineers.

Research Area(s)

  • graded-index waveguides, ion-exchanged waveguides, optical channel waveguides, optical measurement, optical waveguide characterization, thin-film waveguides