Title

Image Revivals in Multi-Mode Optical Fibers with Periodic Multiple Sub-Apertures

Document Type

Article

Publication Date

9-2014

Publication Source

Optics Communications

Abstract

We report experiments on a multi-mode fiber-based device that reimages the input pattern after specific propagation distances. The reimaging has two propagation length scales related to the Talbot self-imaging in a periodic grating and image revival effects. We use a beam propagation method to simulate diffraction and refraction of light in the optical fiber. The details of the fiber preparation and optical experiments are described. We study the optical imaging properties using a close-packed array of sub-apertures placed at regular positions on a triangular lattice. We numerically analyze the propagation, diffraction and coupling characteristics of the beam oscillating inside the fiber. Our simulations identify the optimal reimaging length of the multi-mode (MM) fiber to get high fidelity image revival. Experiments are performed to validate the simulation results.

Inclusive pages

57–63

ISBN/ISSN

0030-4018

Comments

Permission documentation is on file.

Publisher

Elsevier

Volume

326

Peer Reviewed

yes