Design of optical switches by illusion optics
Design of optical switches by illusion optics
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DOI：
10.1088/2040-8978/15/5/055107
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发表时间：
2013-05
影响因子：
2.1
通讯作者：
H. Shoorian;M. S. Abrishamian
中科院分区：
文献类型：
--
作者：
H. Shoorian;M. S. Abrishamian
本文利用错觉光学理论在光波导中形成布拉格光栅来设计光开关。通过在距波导一定距离处使用幻觉装置，远程调制波导的有效折射率，将波导变成分布式布拉格反射器（DBR），在阻带处阻挡波。通过移除幻觉装置，波再次通过波导传播。此外，该方法还可用于在大范围内远程调谐DBR光学特性，例如谐振频率和带宽，从而产生用于光开关应用的可调谐滤波器。最后，使用远距离的幻觉设备，通过在 DBR 中远程插入缺陷来创建光学腔，而不会对主设备造成任何物理损坏。
In this paper, illusion optics theory is employed to form Bragg gratings in an optical waveguide in order to design an optical switch. By using an illusion device at a certain distance from the waveguide, the effective refractive index of the waveguide is remotely modulated, turning the waveguide into a distributed Bragg reflector (DBR) which blocks the waves at a stop band. By removing the illusion device, the waves propagate through the waveguide again. In addition, this method is used to remotely tune DBR optical properties such as resonant frequency and bandwidth in a wide range, which leads to a tunable filter for optical switching applications. Finally, using an illusion device at a distance, an optical cavity is created by inserting defects remotely in a DBR without any physical damage in the primary device.