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Proceedings Paper

Modal decomposition in step-index fibers by optical correlation analysis
Author(s): Thomas Kaiser; Siegmund Schröter; Michael Duparré
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Paper Abstract

The different propagating modes in an optical fiber determine the properties of the light emerging the fiber. Therefore an exact knowledge of the modal content is a key to understand the underlying physical effects. Different approaches exist to measure the modal content of an optical fiber, such as interferometry, M2 measurement or phase retrieval methods with either high experimental complexity or ambiguity relating to the modal content. In this paper we present a method for measuring the modal content by the aid of optical correlation analysis. We demonstrate this with measurements on a passive step-index LMA fiber at a wavelength of 1064 nm.

Paper Details

Date Published: 19 February 2009
PDF: 10 pages
Proc. SPIE 7194, Laser Resonators and Beam Control XI, 719407 (19 February 2009); doi: 10.1117/12.809993
Show Author Affiliations
Thomas Kaiser, Univ. Jena (Germany)
Siegmund Schröter, Institute of Photonic Technologies (Germany)
Michael Duparré, Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 7194:
Laser Resonators and Beam Control XI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke, Editor(s)

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