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The pure-quartic soliton laser

机译:纯四孤子激光器

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Ultrashort pulse generation hinges on the careful management of dispersion. Traditionally, this has exclusively involved second-order dispersion, with higher-order dispersion treated as a nuisance to be minimized. Here, we show that this higher-order dispersion can be strategically leveraged to access an uncharted regime of ultrafast laser operation. In particular, our mode-locked laser-with an intracavity spectral pulse shaper-emits pure-quartic soliton pulses that arise from the interaction of fourth-order dispersion and the Kerr nonlinearity. Phase-resolved measurements demonstrate that their pulse energy scales with the third power of the inverse pulse duration. This implies a strong increase in the energy of short pure-quartic solitons compared with conventional solitons, for which the energy scales as the inverse of the pulse duration. These results not only demonstrate a novel approach to ultrafast lasers, but more fundamentally, they clarify the use of higher-order dispersion for optical pulse control, enabling innovations in nonlinear optics and its applications.
机译:超短脉冲发电铰链对分散的仔细管理。传统上,这完全涉及二阶分散,高阶分散率被视为令人滋扰。在这里,我们表明,可以策略性地利用这种高阶分散,以访问超快激光操作的未公布制度。特别地,我们的模式锁定激光器 - 具有腔内光谱脉冲脉冲穿过纯四孤子脉冲,其出现来自四阶分散和克尔非线性的相互作用。相位解析的测量表明,其脉冲能量尺度具有逆脉冲持续时间的第三功率。与常规孤子相比,这意味着短纯孤子孤子的能量强劲增加,能量尺度为脉冲持续时间的倒数。这些结果不仅展示了超快激光器的新方法,而且更从根本上阐明了使用高阶分散的光脉冲控制,从而实现非线性光学器件的创新及其应用。

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