TR2015-114

Novel multimode interference devices for wavelength beam splitting/combining



This paper reviews our recent device design activities on wavelength splitters/combiners. We start with blind optimization of MMIs having rectangular patches, and then based on the physical insight, the device structures are simplified to achieve even better performance. This methodology is applied to low insertion loss for two- and four-wavelength splitters/combiners, and it can be applied to other types of devices.