I came to know through literature that , ” MZDI comprise a 1X2 splitter, a 2×1 combiner and two waveguides connecting
them with different lengths. Integrated 1X2 splitters/combiners have been implemented using Y-branches [4],
multimode interference couplers [5] and star coupler [6] and there has been much work on minimizing the excess
loss and device sizes of such splitters/combiners”
I shall appreciate if anyone can help me to realize the structure of MZDI with above description given in attached article.
Thanking you.