In this paper, we present a compact photonic crystal directional coupler in a silicon on insulator platform electro-optically switched at 150 kHz with a switching time of 620 ns under a low voltage operation of 2.9 V. The switch design utilizes a coupled photonic crystal structure designed to operate in the slow light regime. Switching is attained by modulating the coupling coefficient of the coupled photonic crystal waveguide system by using a p-i-n diode to modulate the carrier concentration with a density of ∼104 A/cm2 across the plane of the photonic crystal.
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机译:在本文中,我们介绍了一种紧凑的光子晶体定向耦合器,该材料在绝缘体上的硅平台上以2.9 V的低压工作在150 kHz下以620 ns的开关时间进行电光开关,频率为150 kHz。该开关设计采用耦合光子晶体结构设计用于慢速照明条件下。通过使用p-i-n二极管来调制耦合光子晶体波导系统的耦合系数,从而在整个光子晶体平面上以〜104 A / cm2的密度调制载流子浓度,从而实现切换。
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