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arXiv 1102.0351physics.optics
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椭圆光波导阵列中的谐波振荡及其开关

Harmonic oscillations and their switching in elliptical optical waveguide arrays

Ming Jie Zheng, Yun San Chan, Kin Wah Yu

摘要:

本文研究了椭圆光波导阵列中的谐波振荡,其中相邻波导之间的耦合按照Kac矩阵变化,使得传播常数本征值可以取等间隔值。结果,当传播常数中施加线性梯度时,获得长寿命布洛赫振荡(BO)和偶极振荡(DO)。此外,我们通过斜升梯度轮廓实现了从DO到BO的切换,反之亦然。通过场演化分析研究了各种光学振荡及其开关,并通过哈密顿光学证实了这一点。传播常数中的等间隔特征值允许在传输图像、光信号的切换和路由中的可行应用。

英文摘要:

We have studied harmonic oscillations in an elliptical optical waveguide array in which the coupling between neighboring waveguides is varied in accord with a Kac matrix so that the propagation constant eigenvalues can take equally spaced values. As a result, long-living Bloch oscillation (BO) and dipole oscillation (DO) are obtained when a linear gradient in the propagation constant is applied. Moreover, we achieve a switching from DO to BO or vice versa by ramping up the gradient profile. The various optical oscillations as well as their switching are investigated by field evolution analysis and confirmed by Hamiltonian optics. The equally spaced eigenvalues in the propagation constant allow viable applications in transmitting images, switching and routing of optical signals.

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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