【摘 要】
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Generation of noise-like rectangular pulse was investigated systematically in an Er-Yb co-doped fiber laser based on an intra-cavity coupler with different coup
【机 构】
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College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 4
论文部分内容阅读
Generation of noise-like rectangular pulse was investigated systematically in an Er-Yb co-doped fiber laser based on an intra-cavity coupler with different coupling ratios. When the coupling ratio was 5/95, stable mode-locked pulses could be obtained with the pulse packet duration tunable from 4.86 ns to 80 ns. The repetition frequency was 1.186 MHz with the output spectrum centered at 1.6 μm. The average output power and single pulse energy reached a record 1.43 W and 1.21 μJ, respectively. Pulse characteristics under different coupling ratios (5/95, 10/90, 20/80, 30/70, 40/60) were also presented and discussed.
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