… the multi-mode interferometer (MMI) coupler. Although these … demonstrated using tilted
subwavelength dielectric nanoslots… of <0.15 dB and waveguide crossings with insertion losses of …

… further by using a tilted waveguide. SOA use stimulated … FDTD for the MMI and waveguide
crossing, we have designed … based on the Sparameter of MMI and waveguide crossing …

… are taken as the initial parameters for the MMI design. The initial guess was optimized by
tuning the MMI length (𝐿𝑀𝑀𝐼), input waveguide width (𝑊𝑒𝑛𝑡𝑟𝑦) and displacement (𝑦𝑜𝑓𝑠) …

… refractive index as a function of waveguide width; (c) … Simulated transmission spectrum of
the multimode MMI for (a) TE0 … , a 6 µm × 6 µm waveguide crossing was also experimentally …

… and LiNbO3-on-insulator waveguides usually have tilted sidewalls caused by its etching …
Kimet al., “Tilted MMI crossings based on silicon wire waveguide,” Opt. Express, vol. 22, no. …

… The PICs are based on our multi-layer Si3N4 platform and include arrayed waveguide
grating (AWG), multi-mode interferometer (MMI), and thermal phase shifters. The PICs show the …

… In (a) ‒ (c), the width and height of the silicon wire waveguides are assumed to be W = 500
… to a straight bus waveguide through a MMI coupler designed as sensing element of a PROG…

… MMI is straightforward to design and integrate into the SOI circuit, but is not discussed further
in this work as a high-performance MMI … to produce waveguides with angled sidewalls [99]. …

… mode in waveguide A and the j-th mode in waveguide B) is … 2 modes in a silicon-on-insulator
(SOI) strip waveguide as the … exist, mainly including the angled sidewalls (for which the …

… such that the heater is only included when crossing the waveguide and not parallel to it. …
This effect is only worsened in a bend, where the tilted index gradient shifts the modal field …