We present an electroabsorption modulated laser based on identical epitaxial scheme, side-wall grating, on- chip microwave probe interface, and a new low-permittivity planarization method. The modulation speed is significantly increased by reducing the electrode capacitance planarizing with 5- $\mu \text{m}$ -thick HSQ layer...

In this paper, we consider an approximation to the Maxwell’s eigenvalue problem based on a very weak formulation of two div-curl systems with complementary boundary conditions. We formulate each of these div-curl systems as a general variational problem with different test and trial spaces as done in [12], i.e., the solution space is L(Ω) ≡ (L(Ω)) and components in the test spaces are in subspa...

Physical-field inspired methodology has become a new branch in image processing techniques. In this paper, a novel image transform is proposed imitating the source reverse of magneto-static field. The image is taken as a vertical magnetic field, and its curl is estimated as the virtual source of the field for image structure representation and analysis. The restoration from the virtual source t...