High-power diode-pumped Nd3+ fiber laser

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

doi:10.1117/12.180724

28 July 1994 High-power diode-pumped Nd³⁺ fiber laser

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

Author Affiliations +

Proceedings Volume 2131, Biomedical Fiber Optic Instrumentation; (1994) https://doi.org/10.1117/12.180724
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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.

Citation Download Citation

John D. Minelly, Kazimierz P. Jedrzejewski, Elizabeth R. Taylor, Ji Wang, David N. Payne, Anthony L. Raven, Ilkka Mannonen, Douglas P. Fernie, and Joseph S. Hayden "High-power diode-pumped Nd³⁺ fiber laser", Proc. SPIE 2131, Biomedical Fiber Optic Instrumentation, (28 July 1994); https://doi.org/10.1117/12.180724

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