Development of an Artificial Intelligence System for the Design of an Optical Mode Converter

Ariel University, Ariel, Israel

Michael Gerasimov, Egor Dyunin, Aharon Friedman

1. AbstractTerahertz irradiation and sensing is being applied lately to a wide

range of fields outside the traditional niches of space science, molecular line spectroscopy, and plasma diagnostics. The motivation is that traditional methods cannot supply a good, or even satisfactory solutions in the terahertz range, due to a much higher diffraction than what is know in the optical regime (infra-red to ultra-violet).This research proposal presents a new technique for converting optical and quasi-optical modes by using Artificial Intelligence. The final purpose is to develop tool for designing system of specialized (printed) mirrors.

5. References[1] Bastiaans, Martin J.. “Chapter 1 Wigner Distribution in Optics.” (2009)[2] Friedman A., Gover A., Dyunin E., Lurie Y., Magori E., Balal N. & Bratman V. (2014). Configuration and status of the Israeli THz free electron laser. In 36th Int. Free-Electron Laser Conf. Basel, Switzerland (Vol. 553).[3] Kapilevich B., Lurie Y., Perutski B., Litvak B., Etinger A., Friedman A. & Vashdi Y. (2014, December). Radiation fields of THz free electron laser: 3D EM simulation and experimental study. In Electrical & Electronics Engineers in Israel (IEEEI), 2014 IEEE 28th Convention of (pp. 1-4). IEEE..

2. Introduction-Transmission Line

Transmission line is a cylindric sealed and air dry tube with diameter 250 mm and consist 4 section, perpendicular to each other. At the junction of two pipes are installed confocal mirrors with 90° reflection angel for the central ray, so that all mirrors have a common focus plane.

3. Algorithm-Flowchart

Start

Ray Set IT

Neural Network

Mirror Profile

Actual Output

Mirror Profile

Desired Output Set

Actual Output Set

Reinforcement Learning

Ray Tracing

e<E

Archive

End

Spline3(xi,yi)

Ix,Iy(apperture) Initial Training

Ix,Iy,Iz(screen)

Yes No

4. Wigner Distribution [1]Representation of electromagnetic field E(x, y) [2, 3] from time domain to set of geometric-optical rays:

0

0 0

MLOUT MODE

IN MODE

GRIDOriginal Source

General PrincipleWigner Transform

Inverse Wigner