All-fiber high peak power narrow pulse width fiber lasers with 63.2 W output
ZHANG Da-yong;ZHANG Kun;ZHU Chen;LI Yao;WANG Xiong-fei;ZHANG Li-ming;Science and Technology on Solid-state Laser Laboratory;
An all-fiber high peak power laser based on master oscillator power amplifier structure is reported. The seed source is a directly pulse driven fiber Bragg grating laser diode at 1064 nm. The seed laser with peak power of 1000 m W is amplified by two stages Yb~(3+) doped double cladding fibers whose core diameters are 10 μm and 30 μm. The output pulse laser with average power of 63. 2 W,pulse width of 14. 3 ns,spectrum width( FWHM) of 4. 552 nm and beam quality factor M~2 of 1. 09 is obtained at repetition rate of 100 k Hz. The prototype of fiber lasers is developed based on this experiment.
【CateGory Index】： TN248