Experimental demonstration of a four-port photonic crystal cross-waveguide structure

We report the design and fabrication of a four-port InP photonic crystal cavity-waveguide structure in which two crossing waveguides intersect in a cavity. Transmission measurements show that by exploiting mode-gap effects, high cross-talk suppression between the two waveguides can be obtained. In a...

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Bibliographic Details
Published in:Applied physics letters 2012-12, Vol.101 (25)
Main Authors: Yu, Yi, Heuck, Mikkel, Ek, Sara, Kuznetsova, Nadezda, Yvind, Kresten, Mørk, Jesper
Format: Article
Language:English
Subjects:
Holes
Indium phosphides
Joining
Optical memory (data storage)
Optical switching
Photonic crystals
Waveguides
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Summary:We report the design and fabrication of a four-port InP photonic crystal cavity-waveguide structure in which two crossing waveguides intersect in a cavity. Transmission measurements show that by exploiting mode-gap effects, high cross-talk suppression between the two waveguides can be obtained. In addition, the waveguides couple to two distinct cavity resonances with different quality-factors as well as small mode volumes. This structure is promising for realizing ultra-fast, low-energy optical switches or memories.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4772942