集成光子分数卷积加速器

IF 6.6 1区 物理与天体物理 Q1 OPTICS
Kevin Zelaya, Mohammed-Ali Miri
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引用次数: 0

摘要

本文介绍了一种基于离散分数傅里叶变换(DFrFT)执行修正卷积操作的集成光子电路结构。这是通过利用两个非均匀耦合波导晶格来实现的,这两个晶格具有等距的特征模式光谱,其长度的选择是为了实现 DFrFT 及其逆运算。可编程调制器阵列交错排列,以便执行所需的分数卷积操作。数值模拟证明,即使输入信号有噪声,所提出的架构也能有效执行平滑和边缘检测任务,电磁波模拟进一步验证了这一点。值得注意的是,轻微的晶格缺陷并不会影响该架构的性能,这显示了它对制造误差的适应能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Integrated photonic fractional convolution accelerator
An integrated photonic circuit architecture to perform a modified-convolution operation based on the discrete fractional Fourier transform (DFrFT) is introduced. This is accomplished by utilizing two nonuniformly coupled waveguide lattices with equally spaced eigenmode spectra, the lengths of which are chosen so that the DFrFT and its inverse operations are achieved. A programmable modulator array is interlaced so that the required fractional convolution operation is performed. Numerical simulations demonstrate that the proposed architecture can effectively perform smoothing and edge detection tasks even for noisy input signals, which is further verified by electromagnetic wave simulations. Notably, mild lattice defects do not jeopardize the architecture performance, showing its resilience to manufacturing errors.
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来源期刊
CiteScore
13.60
自引率
5.30%
发文量
1325
期刊介绍: Photonics Research is a joint publishing effort of the OSA and Chinese Laser Press.It publishes fundamental and applied research progress in optics and photonics. Topics include, but are not limited to, lasers, LEDs and other light sources; fiber optics and optical communications; imaging, detectors and sensors; novel materials and engineered structures; optical data storage and displays; plasmonics; quantum optics; diffractive optics and guided optics; medical optics and biophotonics; ultraviolet and x-rays; terahertz technology.
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