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Opt Express. 2010 Apr 12;18(8):7596-601. doi: 10.1364/OE.18.007596.

Tapered silicon optical fibers.

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  • 1Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK.

Abstract

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.

PMID:
20588598
[PubMed]
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