Abstract
Photonic crystal waveguides allow ultra-compact realization of integrated optical components
because they have high group index. However, they also induce significant losses in effect reducing
the scope of their applications. We find that by increasing the photonic crystal hole to pitch ratio
r/Λ to 0.388 a low loss transmission band is created below the traditional photonic crystal guiding
band. Furthermore this low loss band has sharply defined cutoffs transmission edges for devices
with a length of 50 μm or longer. Finite difference time domain and plane wave expansion
simulations confirm the results and show that the sharpness of the cutoffs can be explained by the
spectral shape of the guiding mode in the band diagram.
Original language | English |
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Publication date | 2011 |
Publication status | Published - 2011 |
Event | Danish Optical Society Annual Meeting 2011 - Aarhus, Denmark Duration: 24 Nov 2011 → 24 Nov 2011 |
Conference
Conference | Danish Optical Society Annual Meeting 2011 |
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Country/Territory | Denmark |
City | Aarhus |
Period | 24/11/2011 → 24/11/2011 |