… This method has been widely employed for shape optimization in mechanical engineering […
the shape optimization based on adjoint method to obtain the multimode waveguide crossing …

… We derive an adjoint shape optimization algorithm with a … SiO 2 -buried SOI coplanar
waveguide crossings. We show that a … A waveguide crossing with simulated performance values …

… Indeed, while straight Silicon waveguides can have extremely low … waveguide crossings,
multimode interferometers) suffer from the presence of evanescent fields outside the waveguide …

… be more compact while still achieving a comparable or potentially better performance (as
compared in Table 2), thanks to the high efficiency and enormous design space of our adjoint-…

… and homogeneous waveguide. By uniform waveguide, we mean that the waveguide is …
In section 1.2, ϵ was constant and we ended up with a self-adjoint operator. The case of a …

… We designed a series of waveguide crossings with different angles of 30, 45, 60, 80 and
90 by the customized inverse design method with broadband optimization. The structures and …

… optimization algorithm combined with the three-dimensional finite-difference time-domain
simulation to design a waveguide crossing that … Inverse design of adjoint method is a fast and …

… being reflected back to the waveguide. The horn has been … of a separate solution of an
adjoint problem. Second, the fact … = 0, when the level-set function crosses the mesh vertex xi, we …

… Specifically, in this work, we employ adjoint optimization with … to many other devices like
waveguide crossings and 4 port 3 dB … shape optimization method, any form of shape or topology …

… This has drastically reduced the losses in Y-splitters [2,3], crosstalk and insertion losses
in waveguide crossings [3,4], along with other more exotic components [4] and is effectively …