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arXiv 1709.02747physics.optics
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拓扑混合硅微激光器

Topological Hybrid Silicon Microlasers

Han Zhao, Pei Miao, Mohammad H. Teimourpour, Simon Malzard, Ramy El-Ganainy, Henning Schomerus, Liang Feng

摘要:

拓扑光子学提供了一个强大的框架,战略控制光限制和传播动力学。通过利用这一概念之间的婚姻,并在一个积极的设置中的自由约束模式的竞争,我们实验证明,第一次,一个混合硅微激光器结构,支持拓扑保护的零模激光。这种模式分布在集成的光学微环阵列上,每个微环支持竞争增益的多种模式。然而,模式竞争减少,有利于预定义的拓扑状态,这反映了由增益分布引起的电荷共轭对称性。即使在有意引入扰动的情况下,在期望状态下的鲁棒单模操作也占上风。所展示的微激光器是在绝缘体上硅衬底上混合实现的,从而很容易适合于在光通信和计算中具有潜在应用的集成硅光子学。

英文摘要:

Topological photonics provides a robust framework for strategically controlling light confinement and propagation dynamics. By exploiting the marriage between this notion and symmetry-constrained mode competition in an active setting, we experimentally demonstrate, for the first time, a hybrid silicon microlaser structure supporting a topologically protected zero-mode lasing. This mode is distributed over an integrated array of optical microrings, each supporting multiple modes that compete for gain. However, the mode competition is diminished in favor of a pre-defined topological state, which reflects the charge conjugation symmetry induced by the gain profile. Robust single-mode operation in the desired state prevails even with intentionally introduced perturbations. The demonstrated microlaser is hybrid-implemented on a silicon-on-insulator substrate, thereby readily suitable for integrated silicon photonics with potential applications in optical communication and computing.

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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