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24 October 2005 Leaky wave interconnections between integrated optic waveguides
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Large scale integration of optical components on a single ship mimics the performance and cost benefits for electronic VLSI, but requires the ability to make sharp bends in optical waveguides. Sharp bends may be achieved by using high refractive index contrast between core and cladding to tightly confine the optical field in the core. However, for tightly confined fields, the evanescent wave extends only submicrons into the cladding, so that coupling between waveguides by leaky wave tunneling in a directional coupler requires high resolution by expensive lithography. We use analysis and the matrix method in simulations to show that by increasing the refractive index between the waveguides in the directional coupler, lithographic resolution and hence cost are reduced.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alastair D. McAulay "Leaky wave interconnections between integrated optic waveguides", Proc. SPIE 6014, Active and Passive Optical Components for WDM Communications V, 60140G (24 October 2005);

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