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Highly efficient optical coupler using hybrid photonic crystal structures

We report a 94% coupling efficiency between silica waveguide (SWG) and planar photonic crystal (PPC). This is achieved using a tapered PPC with a hybrid photonic crystal structure. The hybrid structure combines triangular and rectangular crystals.

Mustafa A. G. Abushagur | Rami A. Wahsheh | M. Abushagur | R. Wahsheh

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