Active phase and polarization locking of a 1.4 kW fiber amplifier

被引：169

作者：

Goodno, Gregory D. ^{[1
]}

McNaught, Stuart J. ^{[1
]}

Rothenberg, Joshua E. ^{[1
]}

McComb, Timothy S. ^{[1
]}

Thielen, Peter A. ^{[1
]}

Wickham, Michael G. ^{[1
]}

Weber, Mark E. ^{[1
]}

机构：

[1] Northrop Grumman Aerosp Syst, Redondo Beach, CA 90278 USA

来源：

OPTICS LETTERS | 2010年 / 35卷 / 10期

关键词：

ARRAYS;

D O I：

10.1364/OL.35.001542

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A three-stage Yb-fiber amplifier emitted 1.43 kW of single-mode power when seeded with a 25 GHz line width master oscillator ( MO). The amplified output was polarization stabilized and phase locked using active heterodyne phase control. A low-power sample of the output beam was coherently combined to a second fiber amplifier with 90% visibility. The measured combining efficiency agreed with estimated decoherence effects from fiber nonlinearity, linewidth, and phase-locking accuracy. This is the highest-power fiber laser that has been coherently locked using any method that allows brightness scaling. (C) 2010 Optical Society of America

引用

页码：1542 / 1544

页数：3

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