OPTIMIZED BEND DESIGN:
The device on the left shows two waveguides joined by a linear
section. The losses are considerable, the power transmission into the
output fundamental mode being only 35%. KALLISTOS was configured to seek
a design with the same length, but with improved transmission. The
result was the "s-bend" on the right. Note how the optimizer
automatically chose to include offsets and the waveguide interfaces!
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