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Investigation of Kerr lens mode locking in lasers with composite active media

机译:复合有源介质激光器中克尔透镜锁模的研究

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摘要

One of the possible methods of realization of active medium with anomalously wide bandwidth has been described. Composite active medium, consisting of several laser active centers with overlapping gainbands in common resonator has been created. In this case gain contour has complex shape with local extremums. Method of numerical simulation of the formation dynamics of ultrashort pulse at passive mode locking in laser with arbitrary spectral gain contour has been performed. The main parameters for the generation of ultrashort pulse in a laser with a composite active medium are obtained and investigated. The conditions of realization of stationary regime in the form of ultrashort pulse generation with duration determined by combined gain bandwidth are calculated.
机译:已经描述了实现具有异常宽带宽的有源介质的可能方法之一。已经创建了复合有源介质,该复合有源介质由在公共谐振器中具有重叠增益带的几个激光有源中心组成。在这种情况下,增益轮廓具有局部极值的复杂形状。进行了数值模拟方法,对具有任意光谱增益轮廓的激光器中超短脉冲在无源锁模中的形成动力学进行了数值模拟。获得并研究了在具有复合活性介质的激光器中产生超短脉冲的主要参数。计算以超短脉冲产生的形式实现稳态的条件,其持续时间由组合增益带宽确定。

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