Author Correction: Foundry-fabricated grating coupler demultiplexer inverse-designed via fast integral methods
Author Correction: Foundry-fabricated grating coupler demultiplexer inverse-designed via fast integral methods
复制标题
作者更正：通过快速积分方法逆向设计铸造厂制造的光栅耦合器解复用器
DOI：
10.1038/s42005-022-00877-4
复制
发表时间：
2022
影响因子：
5.5
通讯作者：
Hajimiri, Ali
中科院分区：
文献类型：
--
作者：
Sideris, Constantine;Khachaturian, Aroutin;White, Alexander D.;Bruno, Oscar P.;Hajimiri, Ali
硅光子学是一种新兴技术，它能够在芯片上进行纳米级的光操纵，影响着通信、计算和传感等不同领域。波分复用通常用于通过在不同波长上同时调制多个数据流来最大化单个光信道上的吞吐量。传统上，波长（解）复用器被实现为单片器件，与光栅耦合器分离，用于将光耦合到芯片中。本文介绍了一种光栅耦合器解复用器的设计和测量。该器件是通过自定义逆设计算法设计的，该算法利用边界积分麦克斯韦求解器，随着网格的细化，该求解器具有极快的收敛速度。据我们所知，所制造的设备享有最低的插入损耗报告光栅解复用器，小尺寸，高分光比，低耦合效率端口之间的不平衡，同时满足标准的UV光刻工艺的可制造性的限制。
Silicon photonics is an emerging technology which, enabling nanoscale manipulation of light on chips, impacts areas as diverse as communications, computing, and sensing. Wavelength division multiplexing is commonly used to maximize throughput over a single optical channel by modulating multiple data streams on different wavelengths concurrently. Traditionally, wavelength (de)multiplexers are implemented as monolithic devices, separate from the grating coupler, used to couple light into the chip. This paper describes the design and measurement of a grating coupler demultiplexer—a single device which combines both light coupling and demultiplexing capabilities. The device was designed by means of a custom inverse design algorithm which leverages boundary integral Maxwell solvers of extremely rapid convergence as the mesh is refined. To the best of our knowledge, the fabricated device enjoys the lowest insertion loss reported for grating demultiplexers, small size, high splitting ratio, and low coupling-efficiency imbalance between ports, while meeting the fabricability constraints of a standard UV lithography process.