Beam splitters are core components of photonic integrated circuits and are often
implemented with multimode interference couplers. While these devices offer high …

We show that it is possible to obtain 2?? 2 waveguide couplers with arbitrary power splitting
ratios by interconnecting a pair of unequalwidth waveguides as the phase-tuning section …

We propose an ultra-broadband multimode interference (MMI) coupler with a wavelength
range exceeding the O, E, S, C, L and U optical communication bands. For the first time, the …

Multimode interference couplers (MMIs) are fundamental building blocks in photonic
integrated circuits. Here it is experimentally demonstrated, for the first time, a two‐fold length …

We propose a multimode interference coupler (MMI) design for high-index-contrast
technologies based on a shallowly etched multimode region, which is, for the first time to our …

Multimode interference devices are very versatile components that are often used as
components for power splitting or combining in larger circuits. In this paper, we present a …

We show through detailed simulations that the length of conventionally designed multimode-
interference couplers for low (< 50%) cross-coupling ratios can be shortened significantly by …

Multimode interference (MMI) couplers are basic building blocks in most photonic integration
circuit platforms. Such devices are used as splitters and combiners. However, they are …

We realized the smallest integrated optical multimode interference (MMI) couplers to date by
etching through the quaternary guiding layer, maximizing the lateral index contrast, and thus …

In this paper, we present the design, optimization, and implementation of a sub-wavelength
grating (SWG) multi-mode interference coupler (MMI) on the silicon nitride photonic …