首页> 外文会议>Advanced Lassers and Systems; Proceedings of SPIE-The International Society for Optical Engineering; vol.6731 >30 W dual active element Yb:KGW regenerative amplifier for amplification of sub - 500fs pulses
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30 W dual active element Yb:KGW regenerative amplifier for amplification of sub - 500fs pulses

机译:30 W双有源元件Yb:KGW再生放大器,用于放大500fs以下的脉冲

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We report on dual active element Yb:KGW regenerative amplifier that provides ultrashort pulses in the 0.3 mJ range at high repetition rates. Each active element was pumped by two 50 W diode pump modules at 980 nm. 30W average power was obtained at 100 kHz repetition rate. Measured spectrum width of 5,4 nm allows for compression of amplified pulses to sub-300 fs pulse duration. As output power increases above 15 W nearly symmetrical Gaussian profile beam becomes slightly elliptical, although remains Gaussian in transverse directions. The measured beam quality parameter M~2 is below 1,5 even at maximum output power.
机译:我们报告了双有源元件Yb:KGW再生放大器,该放大器以高重复频率提供0.3 mJ范围内的超短脉冲。每个有源元件由两个50 W的二极管泵浦模块在980 nm处泵浦。以100 kHz的重复频率获得30W的平均功率。 5.4 nm的测量光谱宽度可将放大后的脉冲压缩到300 fs以下的脉冲持续时间。当输出功率增加到15 W以上时,尽管在横向方向上仍保持高斯分布,但几乎对称的高斯分布束会变得略呈椭圆形。即使在最大输出功率下,测得的光束质量参数M〜2仍低于1.5。

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