Design of low loss 1×64 y-branch splitter having symmetric splitting ratio and small footprint

We present the design and simulation of low loss 1 × 64 Y-branch optical splitter having the symmetric splitting ratio and small footprint. This was reached by optimizing the used waveguide structure that eliminates the presence of the first mode, causing the asymmetric splitting ratio of the split power over all the output waveguides. This way we were able to reduce the length of the splitter to nearly one third of its original designed value.