FFT Beam Propagation Method

Implementation of the FFT BPM in different optical waveguides and free space

The zip file includes the next programs:

BPM_free_space.m - Propagation of a gaussian pulse in free space

BPM_triangle.m - Propagation of a gaussian pulse in a triangle index profile waveguide

BPM_2step.m - Demonstration of the evanescent waves phenomenon in parallel rectangular waveguides

BPM_Y_Branch.m - FFT-BPM in a Y-branch coupler

BPM_mach_zender.m - FFT-BPM simulation of a mach-zender optical switch

REFERENCE:
K. Okamoto, Fundamentals of Optical Waveguides (Academic, 2000).ISBN-13: 978-0125250955