A simple beam size converter using a micro GRIN slab tip with a hemi-cylindrical endface for highly coupling between single-mode fibers and small-core waveguides is presented. Formulas for design are given in closed forms. It has been confirmed experimentally that such micro slab tip is capable of converting the spot radius of a single-mode fiber into the size smaller than the wavelength of 1.55 /spl mu/m.
A micro GRIN-slab tip for integrated coupling between superfine-core waveguides and single-mode fibers
2003-01-01
93091 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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