arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1409.6345physics.opticscond-mat.dis-nncond-mat.stat-mech
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频率梳产生锁模laser的统计物理理论

Statistical physical theory of mode-locking laser generation with a frequency comb

Fabrizio Antenucci, M. Ibáñez Berganza, Luca Leuzzi

摘要:

本文在统计力学框架内研究了封闭腔中锁模激光脉冲的形成,其中激光的产生与由泵浦光功率驱动的热力学相变相一致。电磁模式表示的经典自由度的哈密顿模型平衡在一个有效的合奏对应于固定的激光制度。通过优化的蒙特卡罗数值模拟,分析了不同模式互作用稀释度、增益分布和模式数下的系统特性。给出了由此产生的锁模激光相位的新特性,这些特性是以前的平均场方法无法观察到的。对于强稀释的非线性相互作用网络,功率凝聚发生的整个光强度是由几个电磁模式,其数量不依赖于系统的大小。对于所有报告的情况下,激光阈值,强度谱,和超快电磁脉冲计算。

英文摘要:

A study of the Mode-locking lasing pulse formation in closed cavities is presented within a statistical mechanical framework where the onset of laser coincides with a thermodynamic phase transition driven by the optical power pumped into the system. Electromagnetic modes are represented by classical degrees of freedom of a Hamiltonian model at equilibrium in an effective ensemble corresponding to the stationary laser regime. By means of optimized Monte Carlo numerical simulations, the system properties are analyzed varying mode interaction dilution, gain profile and number of modes. Novel properties of the resulting mode-locking laser phase are presented, not observable by previous mean-field approaches. For strong dilution of the nonlinear interaction network, power condensation occurs as the whole optical intensity is taken by a few electromagnetic modes, whose number does not depend on the size of the system. For all reported cases laser thresholds, intensity spectra, and ultra-fast electromagnetic pulses are computed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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