Development of a User-friendly Optial Circuit CAD System.

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  • 操作性に優れた光回路ＣＡＤシステムの構築

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To construct an accurate, user-friendly system for designing complex, large-scale integratedoptical circuits, we have developed a new data format translator for connecting commerciallyavailable CAD tool packages and a controlling macro-program for efficient design using a languageon a UNIX workstation. The translator divides polygons expressed in the GDSII fileoutput from the layout editor into trapezoids for the segment file input to the simulator usingthe Beam Propagation Method. The controlling macro-program executes all CAD tools automaticallyand changes any parameters of the optical circuits. These two useful programs enableus to design complex large scale integrated optical circuits remarkably in a short time, andoptimize the circuits' parameters very easily.

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