Logic Gates Based on Interaction of Counterpropagating Light in Microresonators
Logic Gates Based on Interaction of Counterpropagating Light in Microresonators
复制标题
DOI：
10.1109/jlt.2020.2975119
复制
发表时间：
2020-03-15
影响因子：
4.7
通讯作者：
Del'Haye, Pascal
中科院分区：
文献类型：
--
作者：
Moroney, Niall;Del Bino, Leonardo;Del'Haye, Pascal
光学逻辑有可能在光电转换不切实际的应用和集成全光电路中用光子电路取代电子学。回音壁模式谐振器中的非线性光学提供了低功耗、可扩展的方法来实现光学逻辑。我们展示了，第一次，一个全光，通用逻辑门使用反向传播的光，其中所有的信号具有相同的工作光频率。这样的设备将使光信号的路由成为可能，而不需要转换到电子域，从而减少延迟。该装置的工作原理是基于回音壁模式谐振器中反向传播光束之间的克尔相互作用，其引起两个传播方向的谐振频率之间的分裂。我们的门使用一个熔融石英微棒谐振器，Q值为2 x 10（8）。这种光学逻辑方法为光的片上路由提供了一种实用的解决方案。
Optical logic has the potential to replace electronics with photonic circuits in applications for which optic-to-electronic conversion is impractical and for integrated all-optical circuits. Nonlinear optics in whispering gallery mode resonators provides low power, scalable methods to achieve optical logic. We demonstrate, for the first time, an all-optical, universal logic gate using counterpropagating light in which all signals have the same operating optical frequency. Such a device would make possible the routing of optical signals without the need for conversion into the electronic domain, thus reducing latency. The operating principle of the device is based on the Kerr interaction between counter-propagating beams in a whispering gallery mode resonator which induces a splitting between the resonance frequencies for the two propagating directions. Our gate uses a fused silica microrod resonator with a Q-factor of 2 x 10(8). This method of optical logic gives a practical solution to the on-chip routing of light.