Suppression of stimulated Brillouin scattering in optical fibers using a linearly chirped diode laser

被引：40
作者：
White, J. O. [1 ]
Vasilyev, A. [2 ]
Cahill, J. P. [1 ]
Satyan, N. [2 ]
Okusaga, O. [1 ]
Rakuljic, G. [3 ]
Mungan, C. E. [4 ]
Yariv, A. [2 ]
机构：
[1] USA, Res Lab, Adelphi, MD 20783 USA
[2] CALTECH, Dept Appl Phys & Mat Sci, Pasadena, CA 91125 USA
[3] Telaris Inc, Santa Monica, CA 90403 USA
[4] USN Acad, Dept Phys, Annapolis, MD 21402 USA
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 14期
关键词：
PHASE-LOCK LOOPS; COHERENT POWER COMBINATION; AMPLIFIER; GAIN;
D O I：
10.1364/OE.20.015872
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The output of high power fiber amplifiers is typically limited by stimulated Brillouin scattering (SBS). An analysis of SBS with a chirped pump laser indicates that a chirp of 2.5 x 10(15) Hz/s could raise, by an order of magnitude, the SBS threshold of a 20-m fiber. A diode laser with a constant output power and a linear chirp of 5 x 10(15) Hz/s has been previously demonstrated. In a low-power proof-of-concept experiment, the threshold for SBS in a 6-km fiber is increased by a factor of 100 with a chirp of 5 x 10(14) Hz/s. A linear chirp will enable straightforward coherent combination of multiple fiber amplifiers, with electronic compensation of path length differences on the order of 0.2 m. (C) 2012 Optical Society of America
引用
收藏
页码：15872 / 15881
页数：10
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