High-powered millijoule pulse energy Tm3+-doped fiber amplifier at 2.05μm |
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引用本文: | 周仁来,鞠有伦,张云军,王月珠.High-powered millijoule pulse energy Tm3+-doped fiber amplifier at 2.05μm[J].Chinese Optics Letters,2011(7):49-51. |
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作者姓名: | 周仁来 鞠有伦 张云军 王月珠 |
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作者单位: | National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology |
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摘 要: | A high-powered millijoule pulse energy Tm 3+ -doped fiber amplifier seeded with a Q-switched operation of Tm (4 at.-%), Ho (0.4 at.-%):YVO 4 laser is reported. The output characteristics of the amplified laser are studied at the coupled powers of 0.266, 1.24, and 2.65 W. Maximum output power up to 15.7 W is at 10-kHz repetition rate. Nonlinear effects are not observed from the emitting spectrum and the full-width at half-maximum (FWHM) of the pulse duration is reduced from 40.1 to 25.9 ns at 1.57-mJ pulse energy. The beam quality factor M 2 x = 1.9±0.03, M 2 y = 2.1±0.02 at the output power of 14.5 W is measured using the traveling knife-edge method.
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关 键 词: | 光纤放大器 高功率脉冲 脉冲能量 最大输出功率 脉冲持续时间 光束质量因子 非线性效应 开关操作 |
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