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

被引：0

作者：

Wang, Ji ^{[1
]}

Gray, Stuart ^{[1
]}

Walton, Donnell ^{[1
]}

Li, Ming-Jun ^{[1
]}

Chen, Xin ^{[1
]}

Ruffin, A. Bob ^{[1
]}

Demeritt, Jeffrey ^{[1
]}

Zenteno, Luis ^{[1
]}

机构：

[1] Corning Inc, Div Sci & Technol, SP AR 02-2, Corning, NY 14831 USA

来源：

PASSIVE COMPONENTS AND FIBER-BASED DEVICES III, PTS 1 AND 2 | 2006年 / 6351卷

关键词：

D O I：

10.1117/12.690970

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper outlines recent work at Coming 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.

引用

页数：7

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