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arXiv 2203.14736physics.optics
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大面积VCSEL中偏振模和横模的复杂非线性动力学

Complex nonlinear dynamics of polarization and transverse modes in a broad-area VCSEL

Stefan Bittner, Marc Sciamanna

摘要:

激光器可以表现出非线性和混沌动力学驱动的多个激光模式的相互作用,并调查不同的情况下的模式竞争和分叉的动力学是非常感兴趣的基础水平,以及在应用程序。我们研究了大面积垂直腔面发射激光器(VCSEL)在孤立连续波操作下的动力学,全面调查其偏振态,激光光谱,近场分布和时间动力学。双折射分裂频率和其他频率分量的波动在一系列分叉中发展。分叉与横向激射模式和/或偏振状态的变化相吻合,表明模式竞争的空间和偏振自由度的重要性。因此,宽区域VCSEL的固有非线性动力学比具有单个空间模式的VCSEL的动力学明显更复杂。

英文摘要:

Lasers can exhibit nonlinear and chaotic dynamics driven by the interaction of multiple lasing modes, and investigating the different scenarios of mode competition and bifurcations of their dynamics is of great interest on a fundamental level as well as in view of applications. We study the dynamics of a broad-area vertical-cavity surface-emitting laser (VCSEL) in solitary continuous-wave operation with a comprehensive investigation of its polarization state, lasing spectra, near-field distributions, and temporal dynamics. Fluctuations at the frequency of birefringence splitting and other frequency components develop in a series of bifurcations. The bifurcations coincide with changes of the transverse lasing modes and/or the polarization state, demonstrating the importance of both the spatial and polarization degrees of freedom for mode competition. As a consequence, the inherent nonlinear dynamics of broad-area VCSELs is significantly more complex than the dynamics of VCSELs with a single spatial mode.

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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