Efficient silicon and side-cladding waveguide modulator with electro-optic polymer
Efficient silicon and side-cladding waveguide modulator with electro-optic polymer
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DOI：
10.1364/oe.447616
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发表时间：
2022-01-17
期刊：
影响因子：
3.8
通讯作者：
Yokoyama, Shiyoshi
中科院分区：
文献类型：
--
作者：
Mao, Jiawei;Sato, Hiromu;Yokoyama, Shiyoshi
采用面内共面波导和电极结构形式的 EO 聚合物，可以在混合硅调制器中产生高效的电光 (EO) 调制。混合结构中光场的强限制对于 EO 聚合物的有效电极化和调制至关重要。该波导由二氧化硅基侧包层和 EO 芯组成，用于增加光场的积分以及 EO 聚合物内光场和调制电场之间的重叠相互作用。我们详细讨论了各种侧覆层材料的电极化和调制效率的体积电阻率依赖性。在Mach-Zehnder干涉仪调制器中，在TE光模式操作下，在1,550 nm的光通信波长处测得的半波电压长度积(V pi L)为1.9 V.cm。该器件的高速信号传输通过在 2.0 V-pp 驱动电压下以高达 52 Gbit/s 的信号速率生成开关键控传输（Q 因数为 6.1）来展示。 (C) 2022 Optica Publishing Group 根据 Optica 开放获取出版协议的条款
Efficient electro-optic (EO) modulation can be generated in the hybrid silicon modulator with EO polymer in the form of an in-plane coplanar waveguide and electrode structure. Strong confinement of the optical field in the hybrid structure is critical to performing efficient electric poling and modulation of the EO polymer. The waveguide consists of silica-based side claddings and an EO core for increasing the integral of the optical field and the overlap interaction between the optical field and the modulated electric field within the EO polymer. We discuss in detail the volume resistivity dependence of the efficiency of electric poling and modulation for various side-cladding materials. In a Mach-Zehnder interferometer modulator, the measured half-wave-voltage length product (V pi L) is 1.9 V.cm at an optical communication wavelength of 1,550 nm under the TE optical mode operation. The high-speed signaling of the device is demonstrated by generating on-off-keying transmission at signal rates up to 52 Gbit/s with a Q factor of 6.1 at a drive voltage of 2.0 V-pp. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement