Abstract

We propose and analyze a highly efficient method of coupling light from optical fibers to two-dimensional photonic crystal waveguides. Efficient coupling is achieved by positioning of a tapered fiber parallel to the linear defect, where the photonic crystal’s cladding functions as a grating coupler and provides field confinement as well. Numerical simulations indicate that better than 90% transmission is possible with a full width at half-magnitude bandwidth of 12 nm. It is shown that one can increase the bandwidth by increasing the field overlap between the two waveguides.

© 2002 Optical Society of America

Efficient input and output fiber coupling to a photonic crystal waveguide

Paul E. Barclay, Kartik Srinivasan, Matthew Borselli, and Oskar Painter
Opt. Lett. 29(7) 697-699 (2004)

Broadband waveguide intersections with low cross talk in photonic crystal circuits

Sheng Lan and Hiroshi Ishikawa
Opt. Lett. 27(17) 1567-1569 (2002)

Design of photonic crystal waveguides for evanescent coupling to optical fiber tapers and integration with high-Q cavities

Paul E. Barclay, Kartik Srinivasan, and Oskar Painter
J. Opt. Soc. Am. B 20(11) 2274-2284 (2003)

High-efficiency coupling structure for a single-line-defect photonic-crystal waveguide

Dennis W. Prather, Janusz Murakowski, Shouyuan Shi, Sriram Venkataraman, Ahmed Sharkawy, Caihua Chen, and David Pustai
Opt. Lett. 27(18) 1601-1603 (2002)

Coupled-wave formalism for optical waveguiding by transverse Bragg reflection

Amnon Yariv
Opt. Lett. 27(11) 936-938 (2002)