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Demonstration of a high-energy, narrow-bandwidth, and temporally shaped fiber regenerative amplifier

机译:演示高能量,窄带宽,时间形状的光纤再生放大器

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We report a high-energy and high-gain fiber regenerative amplifier for narrow-bandwidth nanosecond laser pulses that uses a Yb-doped photonic crystal fiber. The input pulse energy is 270 pJ for a 3.5 ns laser pulse with 0.3 nm (FWHM) bandwidth. At a pump laser power of 8.6 W at 974 nm, pulse energies up to 746 mu J with 1.2% (rms) energy stability are generated. To the best of our knowledge, this is the highest energy obtained in a fiber-based regenerative amplifier. A high-energy, nearly diffraction-limited, single-mode beam with a high gain of 64 dB shows promise for future application in the front ends of high-power laser facilities. (C) 2015 Optical Society of America
机译:我们报告了一种高能量,高增益的光纤再生放大器,该放大器用于使用掺Yb的光子晶体光纤的窄带宽纳秒激光脉冲。对于具有0.3 nm(FWHM)带宽的3.5 ns激光脉冲,输入脉冲能量为270 pJ。在974 nm处,泵浦激光功率为8.6 W时,产生的脉冲能量高达746μJ,能量稳定性为1.2%(rms)。据我们所知,这是在基于光纤的再生放大器中获得的最高能量。高能量,近衍射极限的单模光束具有64 dB的高增益,显示了未来在大功率激光设备前端应用的希望。 (C)2015年美国眼镜学会

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