Abstract

We experimentally demonstrate a new class of optical waveguide consisting of aSi/SiO2 autocloned photonic crystals with modulated lattice structure. The waveguide utilizes the macroscopic form birefringence of photonic crystals and confines light by the difference in the effective refractive index. A monopole modal field with spot diameters of 6.9 µm×6.5 µm was observed at a wavelength of 1.55 µm. The propagation loss of the waveguide at the wavelength was found to be 4.2 dB/mm at most.

© 2002 Optical Society of America

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