All-optical spatial light modulator for reconfigurable silicon photonic circuits
All-optical spatial light modulator for reconfigurable silicon photonic circuits
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DOI：
10.1364/optica.3.000396
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发表时间：
2016-04-20
期刊：
影响因子：
10.4
通讯作者：
Muskens, Otto L.
中科院分区：
文献类型：
--
作者：
Bruck, Roman;Vynck, Kevin;Muskens, Otto L.
能够路由光流动的可重新配置的光子设备能够实现灵活的集成光学电路，这些电路不是硬连线的，但可以进行外部控制。类似于自由空间空间光调制器，我们证明了全光学波前整形集成绝缘体上硅光子器件通过修改的空间折射率分布的设备，采用紫外脉冲激光激发。应用适当的激发模式使我们能够完全控制通过器件的双波长光的光学传递函数，从而使我们能够重新定义其功能。作为概念的证明，我们通过实验证明了多模干涉功分器端口之间的光路由，总效率超过97%，损耗可以忽略不计。集成光子电路中的波前整形提供了一种概念上的新方法，以实现高度适应性和现场可编程的光子电路，在光学测试和数据通信中的应用。(C)2016美国光学学会
Reconfigurable photonic devices capable of routing the flow of light enable flexible integrated-optic circuits that are not hardwired but can be externally controlled. Analogous to free-space spatial light modulators, we demonstrate all-optical wavefront shaping in integrated silicon-on-insulator photonic devices by modifying the spatial refractive index profile of the device employing ultraviolet pulsed laser excitation. Applying appropriate excitation patterns grants us full control over the optical transfer function of telecommunication-wavelength light traveling through the device, thus allowing us to redefine its functionalities. As a proof of concept, we experimentally demonstrate the routing of light between the ports of a multimode interference power splitter with more than 97% total efficiency and negligible losses. Wavefront shaping in integrated photonic circuits provides a conceptually new approach toward achieving highly adaptable and field-programmable photonic circuits with applications in optical testing and data communication. (C) 2016 Optical Society of America