Digital N× N multimode interference couplers

TA Ramadan - 2017 34th National Radio Science Conference …, 2017 - ieeexplore.ieee.org
A new approach is proposed for the design of N× N multimode interference (MMI) couplers
which maximizes the number of their input/output ports. It replaces the multimode …

A Design of a Vertical Multimode Interference Coupler With an Ultra-Wide Bandwidth

TA Ramadan - IEEE Photonics Technology Letters, 2016 - ieeexplore.ieee.org
An ultra-wideband vertical multimode interference coupler (MMIC) is proposed. The
proposed coupler replaces the conventional core of MMICs with a digital core of strongly …