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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 27, Iss. 5 — Mar. 1, 2009
  • pp: 612–618

Focusing Polarization Diversity Grating Couplers in Silicon-on-Insulator

Frederik Van Laere, Wim Bogaerts, Pieter Dumon, Günther Roelkens, Dries Van Thourhout, and Roel Baets

Journal of Lightwave Technology, Vol. 27, Issue 5, pp. 612-618 (2009)


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Abstract

We report on compact focusing polarization diversity grating couplers in silicon-on-insulator, which can be used to overcome the polarization dependence of nanophotonic integrated circuits. The minimum fiber-to-fiber polarization dependent loss is 0.4 dB and the focusing grating couplers are as performant as standard 2-D-grating couplers without focusing. In addition, the focusing property of the gratings results in an 8-fold length reduction of the coupling structure as compared to standard nonfocusing 2-D-grating versions.

© 2009 IEEE

Citation
Frederik Van Laere, Wim Bogaerts, Pieter Dumon, Günther Roelkens, Dries Van Thourhout, and Roel Baets, "Focusing Polarization Diversity Grating Couplers in Silicon-on-Insulator," J. Lightwave Technol. 27, 612-618 (2009)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-27-5-612

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