29 August 2008 The impact of metallic contacts on propagation losses of an underlying photonic crystal waveguide
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Abstract
In view of an electrically pumped photonic crystal-based semiconductor optical amplifier (SOA), we investigate optical mode propagation in 2D PhC waveguides in the presence of metal contacts for carrier injection. Our photonic crystal (PhC) devices are manufactured in the InP/InGaAsP material system. For the loss measurements, we have fabricated contact strips as narrow as 300nm with a sub-50nm placing accuracy on top of W3 waveguides. We study the influence of their position and width on optical power transmission through passive waveguides with respect to viability for future active devices. Our experimental results are complemented by numerical studies (FDTD, plane-wave expansion method).
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Peter Kaspar, Roman Kappeler, Fouad Karouta, Franck Robin, Patric Strasser, and Heinz Jäckel "The impact of metallic contacts on propagation losses of an underlying photonic crystal waveguide", Proc. SPIE 7031, Active Photonic Crystals II, 70310A (29 August 2008); doi: 10.1117/12.793687; https://doi.org/10.1117/12.793687
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