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Proceedings Paper

A superprism-based photonic crystal demultiplexer in nearly-perfect collimation conditions
Author(s): Eric Cassan; Damien Bernier; Anatole Lupu; Xavier Le Roux; Delphine Marris-Morini; Laurent Vivien
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Paper Abstract

Superprism phenomena in planar photonic crystals (PhCs) can be used for the realization of compact demultiplexers. Yet, strong dispersion is most often accompagnied by strong diffraction. The design, fabrication, and experimental characterization of a PhC demultiplexer is presented. A special care is taken to excite the equi-frequency surfaces in dispersive and simultaneously nearly-collimated regions. The structure is fabricated on a SOI substrate using e-beam lithography and RIE etching. With four output channels, its footprint is 2800μm2. It is characterized by a -16 dB level of crosstalk around λ = 1550 nm, with 2dB loss.

Paper Details

Date Published: 13 May 2010
PDF: 7 pages
Proc. SPIE 7713, Photonic Crystal Materials and Devices IX, 77130J (13 May 2010); doi: 10.1117/12.853784
Show Author Affiliations
Eric Cassan, Institut d'Électronique Fondamentale, Univ. de Paris-Sud, CNRS (France)
Damien Bernier, Institut d'Électronique Fondamentale, Univ. de Paris-Sud, CNRS (France)
Anatole Lupu, Institut d'Électronique Fondamentale, Univ. de Paris-Sud, CNRS (France)
Xavier Le Roux, Institut d'Électronique Fondamentale, Univ. de Paris-Sud, CNRS (France)
Delphine Marris-Morini, Institut d'Électronique Fondamentale, Univ. de Paris-Sud, CNRS (France)
Laurent Vivien, Institut d'Électronique Fondamentale, Univ. de Paris-Sud, CNRS (France)


Published in SPIE Proceedings Vol. 7713:
Photonic Crystal Materials and Devices IX
Hernán R. Míguez; Sergei G. Romanov; Lucio Claudio Andreani; Christian Seassal, Editor(s)

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