We present the design and fabrication of a planar structure for coupling light from a multimode feed waveguide into a single-line-defect photonic-crystal waveguide. Finite-difference time-domain calculations predict a coupling efficiency of greater than 90%, and preliminary experimental results indicate successful coupling through a single-line-defect photonic-crystal waveguide. Device design, fabrication, and characterization are presented.
© 2002 Optical Society of America
(130.1750) Integrated optics : Components
(130.3120) Integrated optics : Integrated optics devices
(230.3120) Optical devices : Integrated optics devices
(230.7390) Optical devices : Waveguides, planar
Dennis W. Prather, Janusz Murakowski, Shouyuan Shi, Sriram Venkataraman, Ahmed Sharkawy, Caihua Chen, and David Pustai, "High-efficiency coupling structure for a single-line-defect photonic-crystal waveguide," Opt. Lett. 27, 1601-1603 (2002)