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Microstructured fibers for high power applications

Baggett, J.C., Petrovich, Marco, Hayes, John, Finazzi, V., Poletti, Francesco, Amezcua, R., Broderick, N.G.R., Richardson, D.J., Monro, T.M., Salter, P.L., Proudley, G. and O'Driscoll, E.J. (2005) Microstructured fibers for high power applications At SPIE Optics EasT: Nanophotonics for Communication: Materials and Devices II. 23 - 26 Oct 2005. , 15pp. (doi:10.1117/12.632809).

Record type: Conference or Workshop Item (Paper)

Abstract

Fiber delivery of intense laser radiation is important for a broad range of application sectors, from medicine through to industrial laser processing of materials, and offers many practical system design and usage benefits relative to free space solutions. Optical fibers for high power transmission applications need to offer low optical nonlinearity and high damage thresholds. Single-mode guidance is also often a fundamental requirement for the many applications in which good beam quality is critical. In recent years, microstructured fiber technology has revolutionized the dynamic field of optical fibers, bringing with them a wide range of novel optical properties. These fibers, in which the cladding region is peppered with many small air holes, are separated into two distinct categories, defined by the way in which they guide light: (1) index-guiding (HFs), in which the core is solid and light is guided by a modified form of total internal reflection, and (2) (PBGFs) in which guidance in a hollow core can be achieved via photonic band-gap effects. Both of these microstructured fiber types offer attractive qualities for beam delivery applications. For example, using HF technology, large-mode-area, pure silica fibers with robust single-mode guidance over broad wavelength ranges can be routinely fabricated. In addition, the ability to guide light in an air-core within PBGFs presents obvious power handling advantages. In this paper we review the fundamentals and current status of high power, high brightness, beam delivery in HFs and PBGFs, and speculate as to future prospects.

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Published date: 2005
Venue - Dates: SPIE Optics EasT: Nanophotonics for Communication: Materials and Devices II, 2005-10-23 - 2005-10-26

Identifiers

Local EPrints ID: 41169
URI: http://eprints.soton.ac.uk/id/eprint/41169
PURE UUID: fcfcdd83-b05b-4099-9190-9888180a67dd
ORCID for Francesco Poletti: ORCID iD orcid.org/0000-0002-1000-3083

Catalogue record

Date deposited: 26 Jul 2006
Last modified: 17 Jul 2017 15:32

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Contributors

Author: J.C. Baggett
Author: Marco Petrovich
Author: John Hayes
Author: V. Finazzi
Author: R. Amezcua
Author: N.G.R. Broderick
Author: D.J. Richardson
Author: T.M. Monro
Author: P.L. Salter
Author: G. Proudley
Author: E.J. O'Driscoll

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