Tapered silicon optical fibers

The tapering of silicon optical fibers is demonstrated using a fusion splicer. The silicon fibers are fabricated using a high pressure chemical deposition technique to deposit an amorphous silicon core inside a silica capillary and the tapering is performed in a separate post-process. Optical and ma...

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Bibliographic Details
Published in:Optics express 2010-04, Vol.18 (8), p.7596-7601
Main Authors: Healy, N, Sparks, J R, Sazio, P J, Badding, J V, Peacock, A C
Format: Article
Language:English
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Summary:The tapering of silicon optical fibers is demonstrated using a fusion splicer. The silicon fibers are fabricated using a high pressure chemical deposition technique to deposit an amorphous silicon core inside a silica capillary and the tapering is performed in a separate post-process. Optical and material characterization has revealed a smooth transition region leading to a uniform tapered waist that are both simultaneously crystallized to yield a solid polysilicon core. The strong mode confinement and low taper loss measured in the silicon fibers verifies this tapering approach for the fabrication of structures with nanoscale core dimensions.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.007596