Traditional optical design processes can only obtain a few solutions after time-consuming trial-and-error process. During this process, how to select the numbers and sequence of surfaces different types (spherical, aspherical, freeform) required by system remains difficult problem. Currently, no automatic method is available for reflective systems that contain multiple surface types. Therefore,...

Superposing multiple plane waves can generate helicity lattices in which the optical varies regularly space. Here we propose an inverse design method for constructing arbitrary structures based on placing a digital object of dielectric inclusions three-dimensional We apply to that reproduce two-dimensional embedded within region using only single wave as input. In order demonstrate power and fl...

For the first time, the 4- and 5-port optical routers are designed by using the West First routing algorithm for use in optical network on chip. The use of the WF algorithm has made the designed routers to provide non-blocking routing in photonic network on chip. These routers not only are based on high speed Mach-Zehnder switches(Which have a higher bandwidth and more thermal tolerance than mi...

remote sensing using small spacecraft arising from multi-objective economic activity problems is getting more and more developed. these satellites require very accurate pointing to specific locations of interest, with high reliability and small latency. the space borne imaging systems always attempted to achieve the highest ground resolution possible with the available technology at the given t...

in this paper a novel all-optical logic nand, nor and xor gate based on nonlinear directional coupler theory is demonstrated. we use the identical structure which contains three waveguides, for designing these gates; the only difference however, is the power of inputs light beam. in other words, while a beam with 4 w/μm in power considered as logical one, the output is nand gate and if a beam w...

Optical demultiplexers are used to receive multiple frequency signal from an optical fiber and to split it into its different frequency components. Arrayed waveguide gratings can be used to design an optical demultiplexer and works on the principle of interferometry. This paper presents the design of optical demultiplexer for an optical signal composed of eight frequency components. Simulation ...