Hybrid lens beam waveguide.
An optical beam waveguide consisting of a central aperture and a surrounding lens-a hybrid lens guide-possesses some important advantages of both iris guides and lens guides. Compared to an iris guide, it has a lower loss, and for small curvatures, is less sensitive to bends. Also it is less subject to breakdown than a lens guide. A theoretical study is presented. The hybrid lens guide can be specified by four parameters; the loss is investigated as such effects are also discussed.
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J W
JW
Van Rooy
D L
DL