PMID: 18195916Apr 1, 1983Paper

Sharp bends with low losses in dielectric optical waveguides

Applied Optics
E G Neumann, W Richter

Abstract

A new method is proposed for making sharp bends with low radiation losses in dielectric optical waveguides. By modifying the transverse refractive-index profile at curved sections both the pure bend and the transition losses can be minimized. The optimum gradient-index profile requires an inhomogeneous medium. But in practice this can be replaced by a layered medium. By using four homogeneous layers the permitted radius of curvature of a slab waveguide can be reduced, e.g., from 6400 to only 100 wavelengths.

References

Jun 1, 1980·Optics Letters·L D HutchesonJ J Burke
Mar 15, 1982·Applied Optics·E W Marchand

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Citations

Jun 17, 2006·Applied Optics·Noel Healy, Conleth D Hussey
Dec 10, 2009·Optics Express·Denis Donlagic

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