研究目的
Investigating a method for increasing the core count and available image area for optical fiber bundles through fusing multiple smaller sized sub-bundles, focusing on reducing the dead-space between cylindrical sub-bundles.
研究成果
The study presents a promising alternative fabrication approach for increasing the core count and available image area through a fusing process, demonstrating a reduction of the dead-space area by 30%. Optical losses are attributed to the increased core eccentricity in the fused region. This work is a first step towards realizing a fully developed and pragmatic alternative approach for fabricating large high density fiber bundles.
研究不足
The study is limited by the optical losses associated with the cores in the fused region, attributed to increased core eccentricity. The method needs optimization to reduce elongation of cores and minimize losses at the interface.
1：Experimental Design and Method Selection:
The study involved fusing multiple smaller sized sub-bundles to increase the core count and available image area. The methodology included fabricating small sample lengths of fused optical fiber bundles and characterizing them using optical and scanning electron microscopy.
2：Sample Selection and Data Sources:
Three small 5 cm length samples of FIGH-06-400N Fujikura fiber bundles were used for the tests.
3：List of Experimental Equipment and Materials:
Equipment included a hydrogen flame for fusing, optical and scanning electron microscopes for characterization, and a dual axis optical gauge for diameter measurements.
4：Experimental Procedures and Operational Workflow:
The process involved etching the silica jacket around each fiber bundle, measuring diameters, inserting etched fiber bundles into a fused quartz capillary tube, and applying heat to fuse them together.
5：Data Analysis Methods:
The reduction in dead-space and optical losses near the interfaces were assessed through microscopy and intensity profiling.
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