Nonlinear, metal-clad optical waveguide

Author

Bhavesh Patel, New Jersey Institute of Technology

Document Type

Thesis

Date of Award

5-31-1989

Degree Name

Master of Science in Electrical Engineering - (M.S.)

Department

Electrical Engineering

First Advisor

Haim Grebel

Second Advisor

Edip Niver

Third Advisor

Tushar Bhattacharjee

Abstract

Planar optical waveguides consisting of different types of films including nonlinear films with metal cladding have been studied theoretically. Ideal metal cladding with σ = ∞ and nonideal metal cladding with σ ≠ ∞, that is, with complex refractive index is considered to get electric field and wave number for TE₀ mode. For nonlinear material, approximate solution is derived in a series form using Rayleigh-Schrodinger method. The appropriate eigenvalue equations are solved by Newton-Raphson iteration method. For self-focusing media in the center, the propagation constant increases with increasing power and with self-focusing media in the cladding the propagation constant decreases with increasing power. For the latter case, when the refractive index of the cladding is greater than that of the core, we may get an increase in the propagation constant β with increasing power. For non-ideal metal-clad waveguide the propagation constant is a complex number because of the nonideal metal's complex refractive index.

Recommended Citation

Patel, Bhavesh, "Nonlinear, metal-clad optical waveguide" (1989). Theses. 2861.
https://digitalcommons.njit.edu/theses/2861