Image fiber coupler design and its performance

Image fiber is an important candidate for 2D parallel optical transmission medium for high-speed and high-density optical interconnects. To realize one-to-many image fiber link for optical bus systems, image fiber coupler which branches image fibers is a key device. Image fibers can be branched simply by using beam-splitters (BS's) and lenses which image one end to the other ends of the image fibers. However, the compact and reliable assembly and ease of optical alignment are required. We have developed a novel image fiber coupler using graded index rod lenses, a miniature cube BS, and V-grooves.

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