Seraj Zahra, Soroosh Mohammad, Alaei-Sheini Navid
Appl Opt. 2020 Jan 20;59(3):811-816. doi: 10.1364/AO.374428.
In this paper, a compact optical high-speed 1-bit comparator is proposed based on photonic crystals. In this structure, the nonlinear rods are used at the cross-connecting point of two optical waveguides. The optical transmission and reflection from these rods depend on the amount of the optical intensity. In response to the different states of the input ports, different values of the optical power reach these rods and the interference patterns make the correct function of the output ports. The refractive index and the Kerr coefficient of nonlinear rods are 1.4/ and 10/, respectively. The footprint of the structure is 55µ, which is much smaller than the previous works. Besides, the lower delay time is the other advantage of this work compared with the previous works. Based on the simulation results, the proposed structure can be used in integrated optical circuits.
本文提出了一种基于光子晶体的紧凑型光学高速1位比较器。在这种结构中，非线性棒被用于两个光波导的交叉连接点。这些棒的光传输和反射取决于光强的大小。响应于输入端口的不同状态，不同光功率值到达这些棒，并且干涉图案使输出端口正常工作。非线性棒的折射率和克尔系数分别为1.4/和10/。该结构的占地面积为55µ，比以前的工作小得多。此外，与以前的工作相比，较低的延迟时间是这项工作的另一个优点。基于模拟结果，所提出的结构可用于集成光学电路。
