In optical integrated circuits, in some applications a metal layer is placed near an optical waveguide. When light propagates in a waveguide, a small portion of it interacts with the metal layer, warming it up. This phenomenon is a well-known light to heat conversion [1]. In this study, a 1D model was utilized to calculate the temperature increase in Titanium by solving the wave equation in the x -direction. In the Transverse Mode (TM) of light, the principal fiel dcomponen tis Hy(x) , with Hx and Hz both zero. The wave equation for TM mode is represented by the following equation
