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Enhanced transmission through photonic-crystal-based bent waveguides by bend engineering

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7 Author(s)
Moosburger, R. ; Technische Physik, University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany ; Kamp, M. ; Forchel, A. ; Olivier, Segolene
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We have studied the transmission of light through two-dimensional photonic-crystal-based waveguides with two 60° bends. The waveguides consist of three or five missing rows of holes inside a triangular photonic crystal block fabricated on an AlGaAs/GaAs waveguide structure. Fine tuning of the bend design results in a severe impact on the transmission behavior, leading to losses as low as 1.1 dB/bend. Measurements of losses in the bends were performed by a comparison with a straight guide of identical length. © 2001 American Institute of Physics.

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Applied Physics Letters  (Volume:79 ,  Issue: 22 )