Offset effect on the S-Bend structure losses and optimization of its size for integrated optics

The S-Bend paths are very useful to connect many integrated optical components. These devices must be designed to minimize the signal loss caused by curve. However integrated optical circuits require S-Bend waveguide to be low loss and compact sized. In this paper, we present the approach to connect the S-Bend and the straight waveguide by using the simulated bend function available in the Beam propagation tool of the Rsoft commercial software package. Simulation results confirm that the S Bend structure with offset could reduce the length of the structure for the integrated optics and this for a relative minimum of losses