Cockatoos are genuinely so weird, and that’s what everyone loves about them. Having a Cockatoo is basically like having a toddler, and the best part is that these toddlers can live to 60 years and ...

We demonstrate two kinds of low-loss 1 × 4 optical power splitters based on multimode interference (MMI) couplers. By using the adjoint shape optimization method, the shapes of MMI couples are ...