Ytterbium-doped nanosecond-pulsed all-fiber laser based on dissipative soliton resonance and its frequency-doubling - Details

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Abstract：

A　novel　nanosecond-pulsed,　frequency-doubled　green　laser　at　532　nm　is　reported,　whose　fundamental　light　is　a　dissipative　soliton　resonance　(DSR)　square-shaped,　nanosecond　pulse,　which　is　obtained　by　all-fiber　ytterbium-doped　laser　with　master-oscillator　power-amplifier　(MOPA)　system.　The　ytterbium-doped　fiber　seed　laser　generates　stable　DSR,　square-shaped,　nanosecond　pulse　by　using　nonlinear　polarization　rotation　(NPR)　modelocked　technology.　The　pulse　width　of　the　fiber　laser　can　be　stably　turned　from　3　ns　to　40　ns　by　just　changing　the　pump　power.　After　one　stage　non　polarization-maintained　ytterbium-doped　fiber　and　two　stages　polarizationmaintained　ytterbium-doped　fiber　amplification,　the　final　output　power　is　6.95　W,　corresponding　to　a　peak　power　of　4.4　kW.　The　output　of　the　all-fiber　MOPA　is　launched　into　a　20　mm-long　LBO　crystal　and　a　maximum　secondharmonic　power　of　2.1　W　is　obtained　at　a　fundamental　power　of　6.95　W　with　the　optical　conversion　efficiency　of　30.2%.　©,　2015,　Science　Press.　All　right　reserved.

Keyword：

Ytterbium Power amplifiers Optical phase conjugation Pulsed lasers Conversion efficiency Solitons Ultrafast lasers Lasers Frequency doublers Fiber amplifiers Polarization Fibers Resonance Optical pumping Fiber lasers

Author Community：

[ 1 ] [Yang, Tieshan]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Wang, Xiuhong]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Sun, Ruoyu]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Li, Yanping]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Cheng, Zhaochen]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Li, Huihui]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Shi, Hongxing]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Liu, Jiang]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 9 ] [Wang, Pu]National Center of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China