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Opt Express. 2013 Mar 25;21(6):6733-8. doi: 10.1364/OE.21.006733.

Ultra-compact, flat-top demultiplexer using anti-reflection contra-directional couplers for CWDM networks on silicon.

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  • 1Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada. weis@ece.ubc.ca

Abstract

Wavelength-division-multiplexing (WDM) networks with wide channel grids and bandwidths are promising for low-cost, low-power optical interconnects. Wide-bandwidth, single-band (i.e., no free-spectral range) add-drop filters have been developed on silicon using anti-reflection contra-directional couplers with out-of-phase Bragg gratings. Using such filter components, we demonstrate a 4-channel, coarse-WDM demultiplexer with flat passbands of up to 13 nm and an ultra-compact size of 1.2 × 10(-3) mm(2).

PMID:
23546055
[PubMed - indexed for MEDLINE]
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