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Proceedings Paper

High performance Yb-doped double-clad optical fibers for high-power, narrow-linewidth fiber laser applications
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Paper Abstract

This paper outlines recent work at Corning Incorporated on fiber composition design and fabrication of a SBS-managed, large-mode-area (LMA), Yb-doped double-clad fiber for high-power, narrow-linewidth fiber laser applications. Through a detailed theoretical analysis for the SBS threshold in optical fibers, an Aluminum/Germanium (Al/Ge) counter-graded fiber-core composition profile has been proposed and demonstrated for reducing the SBS effect, via the reduced-overlap between optical and acoustic modes in the fiber design. Such Al/Ge counter-graded-composition-profile design overcomes the limitation in a multilayer fiber-core approach, in terms of the low-loss fiber fabrication. The new compositionally SBS-managed, LMA Yb-doped double-clad laser fiber fabricated through the new design, has shown more than ~7 dB improvement in SBS threshold over the conventional LMA fiber design. The new fiber offers exceptionally low passive-loss characteristics, and has been demonstrated with uncompromised high laser efficiency for high-power, narrow-linewidth fiber laser applications.

Paper Details

Date Published: 4 October 2006
PDF: 7 pages
Proc. SPIE 6351, Passive Components and Fiber-based Devices III, 635109 (4 October 2006); doi: 10.1117/12.690970
Show Author Affiliations
Ji Wang, Corning Inc. (United States)
Stuart Gray, Corning Inc. (United States)
Donnell Walton, Corning Inc. (United States)
Ming-Jun Li, Corning Inc. (United States)
Xin Chen, Corning Inc. (United States)
A. Boh Ruffin, Corning Inc. (United States)
Jeffrey Demeritt, Corning Inc. (United States)
Luis Zenteno, Corning Inc. (United States)


Published in SPIE Proceedings Vol. 6351:
Passive Components and Fiber-based Devices III
Sang Bae Lee; Yan Sun; Kun Qiu; Simon C. Fleming; Ian H. White, Editor(s)

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