Abstract
Highly compact 1/spl times/32 splitters were fabricated using silica-based planar lightwave circuit (PLC) technologies. The chip size was reduced to 6/spl times/24 mm/sup 2/ by using a 127 /spl mu/m-pitch fibre array and 0.4%-/spl Delta/ waveguides with a 15 mm bending radius. This is /spl sim/1/4 of the size of a conventional 1/spl times/32 splitter. The assembled splitter modules showed low insertion losses of <16.9 dB.
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