On-Chip Dispersion Measurement of the Quadratic Electro-Optic Effect in Nonlinear Optical Polymers Using a Photonic Integrated Circuit Technology
On-Chip Dispersion Measurement of the Quadratic Electro-Optic Effect in Nonlinear Optical Polymers Using a Photonic Integrated Circuit Technology
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DOI：
10.1109/jphot.2019.2917665
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发表时间：
2019-05
影响因子：
2.4
通讯作者：
P. Steglich;C. Villringer;B. Dietzel;C. Mai;S. Schrader;M. Casalboni;A. Mai
中科院分区：
文献类型：
--
作者：
P. Steglich;C. Villringer;B. Dietzel;C. Mai;S. Schrader;M. Casalboni;A. Mai
提出了一种利用绝缘体上硅微环谐振器测量非线性光学材料中二次电光效应色散的新方法。微环由一个硅槽波导组成，在低施加电压下可以实现大的直流电场强度。利用非共振光谱区域的两能级模型，对线性共轭染料的三阶超极化率色散进行了近似计算。作为一个例子，测量了掺杂染料聚合物的谐振腔谐振波长的色散与外加直流电压的关系。该聚合物为聚甲基丙烯酸甲酯，掺杂了$\text{5 wt}\%$分散红1 (DR1)，并在$\text{1550 nm}$（光学c波段）附近的电信波段进行了测量。所描述的测量代表了一种新的技术来确定填充到环形谐振器槽中的材料的三阶磁化率和分子超极化率的色散。
A novel method to determine the dispersion of the quadratic electro-optic effect in nonlinear optical materials by using a silicon-on-insulator microring resonator is presented. The microring consists of a silicon slot waveguide enabling large dc electric field strength at low applied voltages. The dispersion of third-order hyperpolarizability of a linear conjugated dye is approximated by using a two-level model for the off-resonant spectral region. As an example, the dispersion of the resonance wavelength of the resonator filled with a dye doped polymer was measured in dependence of the applied dc voltage. The polymer was poly (methylmethacrylate) doped with $\text{5 wt}\%$ disperse red 1 (DR1), and the measurements have been carried out at the telecommunication wavelength band around $\text{1550 nm}$ (optical C-band). The described measurements represent a new technique to determine the dispersion of the third-order susceptibility and molecular hyperpolarizability of the material filled into the slot of the ring-resonator.