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

Yi Yu, Mikkel Heuck, Sara Ek, Nadezda Kuznetsova, Kresten Yvind, Jesper Mørk

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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.
Original languageEnglish
JournalApplied Physics Letters
Issue number25
Pages (from-to)251113
Number of pages4
Publication statusPublished - 2012

Bibliographical note

Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters / Volume 101 / Issue 25 and may be found at http://apl.aip.org/resource/1/applab/v101/i25/p251113_s1.


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