Title

Transverse mode competition in gain-guided index antiguided fiber lasers

Authors

Authors

X. R. Wang; Y. Chen; W. Hageman; G. U. Kim; M. Richardson; C. D. Xiong; J. Ballato;M. Bass

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Opt. Soc. Am. B-Opt. Phys.

Keywords

SINGLE-MODE; LARGE-CORE; Optics

Abstract

Single-mode laser action has been reported previously in a gain-guided, index antiguided fiber using a scalable side pumping scheme. In this paper we demonstrate the role of transverse mode competition on laser oscillation in such a fiber laser. It enables single, lowest-order mode lasing with a beam quality of M-2 < 2 when using a combination of large fiber core radius and low output coupler reflectivity previously considered to rule out gain-guided index antiguided lasing with such beam quality. In addition, the larger core radii fibers and low output coupler reflectivity enables improved slope efficiency. Both theoretical analysis and experimental results are presented demonstrating mode competition governed lasing in a gain-guided, index antiguided fiber. c (C) 2012 Optical Society of America

Journal Title

Journal of the Optical Society of America B-Optical Physics

Volume

29

Issue/Number

2

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

191

Last Page

196

WOS Identifier

WOS:000300407300020

ISSN

0740-3224

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