Work

Break up of the azimuthal symmetry of higher order fiber modes

Year: 2014

Type: article

Abstract: We investigate Bessel-like modes guided in a double cladding fiber where the outer cladding is an aircladding. For very high order LP(0X) -modes, the azimuthal symmetry is broken and the mode is no longer linearly polarized. This is observed experimentally and confirmed numerically. The effect is investigated numerically using a full vectorial modesolver and is observed to be dependent on the fiber design. The effect on the diffraction free propagation distance of the modes is investigated using a fast Fourier transform propagation routine and compared to the properties of an ideal circularly symmetric mode. The free space properties of modes suffering from break up of azimuthal symmetry are also investigated experimentally by measuring the free space propagation of a LP(016)-mode excited in the double cladding fiber.

Source: Optics Express

DOI: 10.1364/oe.22.011861

Authors: Stine Møller Israelsen, Lars Søgaard Rishøj, Karsten Rottwitt

Institution: Technical University of Denmark

Language: English

Topic: Orbital Angular Momentum in Optics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W2018472017

FWCI: 0.995

Cites: 14

Cited by: 10

Related to: 10