An all-fiber, polarized, passively mode-locked thulium doped 2 μm fiber laser
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摘要: 报道了2 m波段的全光纤保偏锁模掺铥光纤激光器,通过在法布里-珀罗（F-P）腔内加入半导体可饱和吸收镜做为被动锁模器件,采用主振-放大构型,获得了最高输出平均功率为1.08 W,重复频率为10.24 MHz,脉冲宽度为15.24 ps,中心波长为2054.68 nm,光谱宽度约为0.3 nm的2 m线偏振激光脉冲输出,激光脉冲的消光比为24.17 dB。Abstract: All-fiber polarized passively mode-locked thulium-doped fiber laser system operating at 2 m region is presented. Inserting a semiconductor saturable absorber mirror (SESAM) in a Fabry-Perot (F-P) cavity, using master oscillator power amplifier (MOPA) configuration, the laser generated 15.24 ps pulses at repetition rate of 10.24 MHz, with high average power of 1.08 W. The spectrum bandwidth of the 2 m linearly polarized laser output was measured as 0.3 nm, and extinction ratio of the polarized pulses was 24.17 dB.
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