首页|Stable watt-level mode-locked noise-like pulse from an all-PM fiber oscillator at 2 μm
Stable watt-level mode-locked noise-like pulse from an all-PM fiber oscillator at 2 μm
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We have experimentally presented a watt-level noise-like[NL]pulse mode-locked all-polarization-maintaining[PM]fiber laser centered at～1995 nm,which can directly generate stable NL pulses with a maximum output power of～1.017 W and pulse energy of～0.61 μJ,representing the highest output power of mode-locked NL pulse at 2 μm from any fiber oscillators,to the best of our knowledge.The mode-locked NL pulse laser exhibits an excellent stability with a power fluctuation of～0.1％in 8 h of monitoring,and a signal-to-noise ratio of～83 dB at a fundamental frequency of～1.662 MHz.Moreover,the pulse envelope and coherence spike width of the NL pulse can be widely tuned from～4.5 ns to～16 ns,and～364 fs to～323 fs,respectively,with the enhancement of the pump power.Such an all-PM fiber oscillator is the ideal seed source for the implementation of a high-power NL pulse laser and has potential valuable applications in mid-infrared spectroscopy and industrial processing.
Tm-doped fiber lasermode lockingnoise-like pulse
王蒙、丁俊嘉、欧阳德钦、陈业旺、赵俊清、刘星、阮双琛
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Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes,Sino-German College of Intelligent Manufacturing,Shenzhen Technology University,Shenzhen 518118,China
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