![]() ![]() One simple approach to achieve sharp bends in multimode bus waveguide is to use a Euler curve. This will introduce inter-mode coupling and inter-mode crosstalk. However, for an MDM system with a multimode bus waveguide, the modal fields will become asymmetric when the waveguide bend is sharp. In SiPh integrated circuits, waveguide bends are usually inevitable. Wavelength-division multiplexing (WDM), non-orthogonal multiple access (NOMA) and orthogonal-frequency-division multiplexing (OFDM) can also be utilized to further increase the optical interconnect capacity. Mode-division multiplexing (MDM) allows signals to be transmitted simultaneously, at different modes, in a single waveguide. Silicon photonics (SiPh) is one of the important technologies for increasing interconnect capacity and decreasing power consumption. Due to the popularity of different high bandwidth applications, it is becoming increasingly difficult to satisfy the huge data capacity requirements, since the traditional electrical interconnects suffer significantly from limited bandwidth and huge power consumption. ![]()
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