Efficient mode converter design using asymmetric graded index photonic structures

Oner B., Turduev M., Giden I., Kurt H.

Optics Letters, vol.38, no.2, pp.220-222, 2013 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 2
  • Publication Date: 2013
  • Doi Number: 10.1364/ol.38.000220
  • Journal Name: Optics Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.220-222
  • TED University Affiliated: No

Abstract

Asymmetric graded-index (GRIN) inhomogeneous medium is proposed to enable even-to-odd mode conversion. An exponential refractive index profile is implemented to induce an asymmetric refractive index distribution. A two-dimensional photonic crystal structure composed of constant dielectric radii with rectangular unit cells is deployed. Efficient mode transformation in a compact structure may promote the manipulation of light for the creation of other types of higher-order modes in asymmetric GRIN structures. © 2013 Optical Society of America.