基于填充电光聚合物的硅槽型光子晶体波导的宽光谱范围、亚伏、紧凑型电光调制器。

Wide optical spectrum range, subvolt, compact modulator based on an electro-optic polymer refilled silicon slot photonic crystal waveguide.

出版信息

Opt Lett. 2013 Nov 15;38(22):4931-4. doi: 10.1364/OL.38.004931.

DOI:10.1364/OL.38.004931

Abstract

We design and demonstrate a compact and low-power, band-engineered, electro-optic (EO) polymer refilled silicon slot photonic crystal waveguide (PCW) modulator. The EO polymer is engineered for large EO activity and near-infrared transparency. A PCW step coupler is used for optimum coupling to the slow-light mode of the band-engineered PCW. The half-wave switching voltage is measured to be Vπ = 0.97 ± 0.02 V over an optical spectrum range of 8 nm, corresponding to the effective in-device r(33) of 1199 pm/V and V(π) × L = 0.291 ± 0.006 V × mm in a push-pull configuration. Excluding the slow-light effect, we estimate that the EO polymer is poled with an efficiency of 89 pm/V in the slot.

摘要

我们设计并展示了一种紧凑且低功耗的、基于能带工程的电光（EO）聚合物填充硅槽光子晶体波导（PCW）调制器。该 EO 聚合物具有较大的 EO 活性和近红外透明度。采用 PCW 阶跃耦合器实现与能带工程 PCW 的慢光模式的最佳耦合。在 8nm 的光学光谱范围内，半波开关电压测量值为 Vπ=0.97±0.02V，对应于有效器件内 r(33)为 1199pm/V，在推挽配置下 V(π)×L 为 0.291±0.006V×mm。不包括慢光效应，我们估计槽中的 EO 聚合物的极化效率为 89pm/V。