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Low-repetition-rate femtosecond operation in extended-cavity mode-locked Yb:CALGO laser

机译:飞轮锁模Yb:CALGO激光器中的低重复率飞秒操作

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We report on an extended-cavity mode-locked laser based on an Yb:CALGO crystal operating either at 27 MHz and 93 fs pulse duration or at 15 MHz and 170 fs duration single-pulse regime. To the best of our knowledge this is the first demonstration of an extended-cavity oscillator based on Yb-doped crystal producing sub-100 fs pulses. The pulse energy was 24 nJ directly at the output of the oscillator (and 17 nJ after compression). Based on a similar design, we also demonstrate an unprecedented double-pulse dual-wavelength femtosecond regime. An explanation of this atypical regime is proposed.
机译:我们报告了一种基于Yb:CALGO晶体的扩展腔锁模激光器,该晶体在27 MHz和93 fs的脉冲持续时间或15 MHz和170 fs的持续单脉冲状态下运行。据我们所知,这是首次演示了基于掺Yb晶体的长腔振荡器,该振荡器产生100fs以下的脉冲。直接在振荡器输出处的脉冲能量为24 nJ(压缩后为17 nJ)。基于类似的设计,我们还演示了前所未有的双脉冲双波长飞秒状态。建议对此非典型制度进行解释。

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