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Proceedings Paper

High-power diode-pumped Nd3+ fiber laser
Author(s): John D. Minelly; Kazimierz P. Jedrzejewski; Elizabeth R. Taylor; Ji Wang; David N. Payne; Anthony L. Raven; Ilkka Mannonen; Douglas P. Fernie; Joseph S. Hayden
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Paper Abstract

In this paper we describe a multiwatt Nd3+ fiber laser pumped via a second cladding by the DIOMED 25 laser diode unit. This multiple diode array source is designed for coupling up to 25 Watts of diode power into a plastic-clad silica fiber of 400 micrometers diameter. The double-clad laser fiber is interchangeable with the normal PCS delivery fiber. The device operates at 1.058 micrometers with a slope efficiency > 50% and a 150 times brightness enhancement. This laser though useful in itself is also a key intermediate laser for generation of high powers at other wavelengths. Tandem pumping of Tm3+ and Er3+/Yb3+ fiber lasers at 1.058 micrometers enables efficient generation of 2.0 micrometers and 1.55 micrometers radiation respectively. In addition the Nd3+ laser can be operated close to 1.3 micrometers and there are prospects for in-fiber frequency doubling of the 1.06 micrometers line to generate a high power source in the green.

Paper Details

Date Published: 28 July 1994
PDF: 9 pages
Proc. SPIE 2131, Biomedical Fiber Optic Instrumentation, (28 July 1994);
Show Author Affiliations
John D. Minelly, Univ. of Southampton (United Kingdom)
Kazimierz P. Jedrzejewski, Univ. of Southampton (United Kingdom)
Elizabeth R. Taylor, Univ. of Southampton (United Kingdom)
Ji Wang, Univ. of Southampton (United Kingdom)
David N. Payne, Univ. of Southampton (United Kingdom)
Anthony L. Raven, Diomed Ltd. (United Kingdom)
Ilkka Mannonen, Diomed Ltd. (United Kingdom)
Douglas P. Fernie, Diomed Ltd. (United Kingdom)
Joseph S. Hayden, Schott Glass Technologies Inc. (United States)

Published in SPIE Proceedings Vol. 2131:
Biomedical Fiber Optic Instrumentation
James A. Harrington; David M. Harris; Abraham Katzir; Fred P. Milanovich, Editor(s)

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