通过受激布里渊散射在光纤中对多束光进行被动组合。
Passive combination of multiple beams in an optical fiber via stimulated Brillouin scattering.
作者信息
Brown Kirk C, Russell Timothy H, Alley Thomas G, Roh Won B
机构信息
Department of Engineering Physics, Air Force Institute of Technology (AFIT/ENP), Ohio 45433, USA.
出版信息
Opt Lett. 2007 May 1;32(9):1047-9. doi: 10.1364/ol.32.001047.
We demonstrate passive combination of multiple beams in an optical fiber via stimulated Brillouin scattering (SBS). Four off-axis beams are combined in a long multimode optical fiber using a novel all-optical mount. The combined beam has the high spatial coherence properties of the LP(01) mode owing to the beam cleanup properties of SBS. The threshold for SBS when off-axis pumps are used is shown to be a factor of 13 times higher than for on-axis pump beams. We propose this method would improve the brightness of an array of fiber amplifiers.
我们通过受激布里渊散射（SBS）演示了光纤中多光束的被动组合。使用一种新型全光装置在一根长多模光纤中组合了四束离轴光束。由于SBS的光束净化特性，组合光束具有LP(01)模式的高空间相干特性。结果表明，使用离轴泵浦时SBS的阈值比轴上泵浦光束高13倍。我们提出这种方法将提高光纤放大器阵列的亮度。
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