Cascaded modulator architecture for WDM applications
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Integration density, channel scalability, low switching energy and low insertion loss are the major prerequisites for on-chip WDM systems. A number of device geometries have already been demonstrated that fulfill these criteria, at least in part, but combining all of the requirements is still a difficult challenge. Here, we propose and demonstrate a novel architecture consisting of an array of photonic crystal modulators connected by a dielectric bus waveguide. The device architecture features very high scalability and the modulators operate with an AC energy consumption of less than 1fJ/bit. Furthermore, we demonstrate cascadeability and multichannel operation by using a comb laser as the source that simultaneously drives 5 channels.
Debnath , K , O'Faolain , L , Gardes , F Y , Steffan , A G , Reed , G T & Krauss , T F 2012 , ' Cascaded modulator architecture for WDM applications ' , Optics Express , vol. 20 , no. 25 , pp. 27420-27428 . https://doi.org/10.1364/OE.20.027420
© Copyright 2012, The Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.20.027420. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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