Chinese Optics Letters, 2012, 10 (2): 021404, Published Online: Aug. 31, 2011
Experimental study on kilowatt fiber laser in an all-fiber configuration 
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Abstract
A high-power fiber laser in an all-fiber format is reported. The system consists of 36 pump ports, which use both counter and forward pump configuration. In the experiment, 1 008-W output power is obtained when 24 pump ports are used with a total pump power of 1 477 W. The optical-to-optical conversion efficiency is 68% and the 3-dB bandwidth of laser output increases with output power. Presently, the output power is only limited by the pump source. It can be predicted that the laser power can be further scaled if more pump sources are utilized.
Hu Xiao, Yanxing Ma, Pu Zhou, Lei Si, Jinbao Chen. Experimental study on kilowatt fiber laser in an all-fiber configuration[J]. Chinese Optics Letters, 2012, 10(2): 021404.
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