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Observation of light propagation in photonic crystal optical waveguides with bends Light propagation is investigated in two-dimensional photonic crystal waveguides with bends, which were composed of closely-packed holes formed in a GaInAsP thin film. Wavelength and polarisation dependence on propagation characteristics were observed in the wavelength range 1.47–1.60 µm.
Baba et al. (Thu,) studied this question.