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  • CLEO/Europe and EQEC 2011 Conference Digest
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper CE1_1

Direct refractive index measurement technique to observe waveguide dispersion characteristics of short waveguides utilising the higher order modes of integrated Bragg grating structures

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Measuring the dispersion characteristics of a planar waveguide is typically difficult due to the short lengths of waveguides involved. Traditional dispersion measurement techniques were developed in fibre [1] and bulk glass [2], and thus do not take into account the intricacies of the short planar waveguide. The fibre techniques typically require far more material than is available in a short planar waveguide, resulting in an imprecise measurement. The bulk measurement techniques do not take into account the specific structure and dimensions of the waveguide under test, so again do not provide a realistic interpretation of the dispersion characteristics of a specific waveguide.

© 2011 Optical Society of America

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